How many organisms show diplontic life cycle? Selaginella, Equisetum, Cycas, Cedrus, Ectocarpus, Fucus, Sequoia
How many among the given characteristics are true for the given organism? (I) Store food in the form of starch. (II) The cell wall is composed of cellulose and algin. (III) Major photosynthetic pigments are chlorophyll a, chlorophyll d and phycoerythrin. (IV) Biflagellate zoospores with two unequal laterally attached flagella. (V) Gametes are pyriform and bear two laterally attached flagella. (VI) They are usually grass green in colour (VII) These organisms range from simple branched filamentous forms to profusely branched forms as represented by kelps
Recognise the figure and find out the CORRECT matching :
Carbohydrates are the most abundant biomolecule present on earth. They are formed by fixing CO 2 by
Symbiotic association of algae with fungi form
Match Column I with Column II Column I Column II (a) Chlorophyceae (i) Floridean starch (b) Rhodophyceae (ii) Laminarin (c) Phaeophyceae (iii) Glycogen (d) Animalia (iv) Proteins besides starch in pyrenoids
Identify the plant lacking true roots, stem or leaves.
Which green alga shows only oogamous type of sexual reproduction?
Rhizoids of Funaria are
Choose the mismatched pair.
reproduce asexually by non motile spores and sexually by non-motile gametes. (a) Green algae (b) Brown algae (c) Red algae.
Floridean starch has structure similar to :
Select the mismatch
Which of the following both the plants of a pair are homosporous?
Which one of the following is wrongly matched?
Which one of the following shows isogamy with flagellated gametes?
Read the features given below and identify the plant A, B and C. A – Plants with protonemal stage in the life cycle B – Heterosporous vascular cryptogam C – exposed ovules and seeds
How many of the following statements are wrong I. Ginkgo is having only one type of branches II. Ginkgo has simple leaves III. Ginkgo has coralloid roots IV. Ginkgo is the tallest gymnosperm
Sporophyte is the dominant stage in the life cycle of I. Pteridophytes II. Gymnosperms III. Angiosperms IV. Fucus
Kelps have haplodiplontic cycle because
Choose the correct statements. A. The first cell of sporophyte is zygote B. The first cell of gametophyte is spore C. The last cell of sporophyte is Spore mother cell D. The last cell of gametophyte is gamete
Plants playing an important role in plant succession on bare rocks/soil are:
Choose the correct statements. A. Bryophytes and Pteridophytes do not show diplontic life cycle. B. Plants having vascular tissues and showing diplontic life cycle possess seeds. C. Gymnosperms are archegoniate spermatophytes. D. Monocotyledons have pentamerous flowers.
The reserve food material in phaeophyceae and rhodophyceae is respectively
Coralloid roots are seen in:
Identify the plant that has dichotomously branched coralloid roots infested with blue green algae Nostoc and Anabaena .
Colonial algae are seen in
In classical taxonomy species are delimited on the basis of
Gametes are pyriform and bear two laterally attached flagella in:
An example of a vascular cryptogam is
A plant collected from moist shady habitat has the following characters. A. Photosynthetic gametophyte. B. Multicellular sporophyte dependent on independent gametophyte. C. Multicellular branched rhizoids. D. Juvenile gametophyte is involved in vegetative reproduction but not in sexual reproduction. The plant is a
All of the following green algae exhibit isogamy, except
Which of the following is considered for natural system of classification? a. External features b. Ultrastructure c. Anatomy d. Embryology e. Phytochemistry f. Phylogeny
Horsetails belong to the class
Choose the feature not associated with angiosperms.
Choose the feature unique to angiosperms.
Match column I with column II. Column I Column II A. Tallest angiosperm i Pinus B. Smallest angiosperm ii Cycas C. Largest male gametes iii Eucalyptus D. Mycorrhizal roots iv Wolffia Choose the correct answer from the options given below. A B C D 1. iii iv ii i 2. iv iii ii i 3. iii iv i ii 4. iv i iii ii
In the life cycle of one of the following groups of plants, the multicellular gametophyte may be independent and saprophytic.
Both gametophyte and sporophytes are unicellular in
Bryophytes can be demarcated from algae, because they
A gymnosperm yielding anti-asthmatic drug is obtained from
Read the following statements and select the correct ones with respect to angiosperms. (i) The seeds are enclosed by fruit. (ii) The anthers produce pollen grains by mitosis. (iii) Each embryo sac has a three celled egg apparatus. (iv) The synergids and antipodals remains active after fertilisation.
Choose the alga whose vegetative body has a structure called holdfast.
Choose the incorrect statement with respect to phaeophyceae of algae.
Haplo-diplontic life cycle is found in all the following except
Read the following statements a) Heterosporous condition. b) Female gametophyte in these plants are retained on parent sporophytes for variable periods. c) The development of the zygote into young embryo takes place within the female gametophytes. These events are related to
Find the odd one out w.r.t. brown algae.
Which of the following is based on all observable characteristics?
Which of the following is peat or bog moss?
Read the following statements a) Heterosporous condition. b) Female gametophyte in these plants are retained on parent sporophytes for variable periods. c) The development of the zygote into young embryo takes place within the female gametophytes. These events are related to
Select the wrong statement.
Isogamous condition with non-flagellated gametes is found in
Which one of the following statement is wrong?
Read the following five statements (A to E) and se lect the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas have VAM. D. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. E. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.
Syngamy can occur outside the body of the organism in
Conifers are adapted to tolerate extreme environmental conditions because of
Life cycles of Ectocarpus and Fucus respectively are
Which of the following statements is correct?
Which one is wrongly matched?
Winged pollen grains are present in
Sequoia and Selaginella are respectively
Which one is wrongly matched?
Identify the ones which are not diploid? (a) Main plant body of the bryophyte (b) Nucellus in ovule of angiosperms (c) Integumented megasporangium of Cycas (d) Primary endosperm nucleus in angiosperms
All of the following are cormophytes (have diploid body differentiated into root stem and leaves) except:
What is common amongst Marchantia , Fucus and Gracilaria?
An example of unicellular alga is:
Leaves of conifers are usually
Which of the following statement is incorrect.
Numerical taxonomy is the basis of
Origin of seed habit or its foundation was laid down in some pteridophytes,but seed formation did not occur because of
Select the incorrectly matched pair:
The prothallus of pteridophytes is/has A. Small but multicellular B. Inconspicuous C. Free living and photosynthetic D. Thalloid and gametophytic E. Differentiated plant body F. Vascular tissue
Gymnosperms are also called soft wood spermatophytes because they lack
Read the following statement w.r.t leaves of gymnosperm: A. Simple leaf found in Cycas and compound leaf is found in Pinus . B. Sunken stomata and thick cuticle are found to reduce the rate of transpiration. C. Transfusion tissue is found at the place of veinlets. D. Needle-like leaves are found in Cycas. Select the incorrect statements.
Pinus is classified as a gymnosperm because of the following features:
Which statement is incorrect w.r.t given figure?
Archegoniate spermatophytes have/show A.Transfer of pollen grains by wind B Two generations are seen C. Formation of endosperm before fertilization D. Heteromorphic alternation of generation
Ploidy levels of endosperm and embroy in gymnosperms are,respectively
All are characteristics of pteridophytes, except:
Dioecious gametophytes and sporophytes are seen in
Double fertilization occurs in the life cycle of
Zygote behaves as meiocyte in
Haplodiplontic life cycle is found in
Which of the following features correctly belong to the concerned plant group ? A. Presence of fruit habit. B. Sporophyte is not independent, but it is attached to photosynthetic gametophyte. C. Endosperm is haploid and develops before fertilization.
Haploid plant body produces gametes by
Which of the following is a characteristic of conifers?
All are homosporous except:
Spermatium is
Which one of the following plant is heterosporous pteridophyte?
Choose the incorrect pair
The endosperm of Pinus is
Kelps are massive-
Which amongst the following structures are present in gymnosperms?
Choose the correct statements I. Artificial classification systems mostly use vegetative characters of angiosperms II. Equal weightage is given to both vegetative and floral characters in Natural systems of Classifications III. Phylogenetic classfication systems do not consider morphological characters. IV. Phytochemistry is considered in the classfication of angiosperms in Natural systems of classification.
Linnaeus classification of angiosperms is an example for
Fossil evidences are considered for classification of plants in which of the following systems of classifications?
Confusions in phylogenetic system of classification can resolved by considering the following I.Morphological characters II. Chromosomal characters III. Anatomical characters IV. Chemical constituents of cells
Bentham and Hooker's classification of flowering plants is an example for
Bentham and Hooker’s classification of flowering plants is an example for which system of classification?
This system of classification assumes that all organisms belonging to same rank has common ancestor
Every character is given a code in
External morphological characters are considered in I. Artificial system of classification II. Natural system of classification III. Phylogenetic system of classification IV. Numerical taxonomy
External morphological characters are considered in I. Artificial system of classification II. Natural system of classification III. Phylogenetic system of classification IV. Numerical taxonomy
Computers are used in the following to analyse the all observable characters for classification of organisms
Algae are largely
Plant body is always undifferentiated in
Group of pteridophytes usually grown as ornamentals is
In Pteridophytes, vascular tissues are seen in A. Roots B. Leaves C. Prothallus D. Stem
Sporophyte with true root, stem and leaf differentiation is seen for the first time in-
Complex tissues first appeared in
Both microphylls and macrophylls are seen in the follwing group of plant kingdom
Cones or Strobili are seen in A. Equisetum B. Selaginella C. Pteris D. Dryopteris
The structures of Pteridophytes that divide meitotically are
Number of Classes in Pteridophytes is
Several branches arise at every node in
Coralloid roots show
Sequoia is a gymnosperm because it has-
This is not a feature of Gymnosperms.
Roots associated with fugal mycelia are seen in
Stem is caudex in
Modified roots of Cycas are:
Leaves of Gymnosperms are adapted to extremes of A. temeperature B. Wind C. Humidity
Chosse the pair of plants with branched stem
Archegonia are present in A. Bryophytes B. Pteridophytes C. Gymnosperms
Compound leaves are seen in one of the follwing of Gymnosperms.
These are two in number in a given normal embryosac of an angiosperm: A. Synergids B. Polar nuclei C. Antipodals D. Female gametes
In angiosperms, fruit is formed from:
These plants with sporic meiosis show diplontic life cycle A. Fucus B. Angiosperms C. Gymnosperms
The first seed plants are:
In angiosperms, the developing embryo is nourished by:
Choose the incorrect statement.
Brown algae like Fucus do not show
How many species of marine algae are used as food?
At least a half of the total carbon dioxide fixation on earth is carried out by:
Organisms forming basis of the food cycles of all aquatic animals are:
One of the following characters is not shown by an alga that shows diplontic life cycle with gametic meiosis.
Which amongst the following structures is not borne on sporophytic plant body?
Identify the plant group lacking true roots, stem and leaves.
Choose the unicellular alga
Find the incorrect statement:
The male and the female gametophytes do not have an independent free-living existence in:
Red algae
The male thallus of a bryophyte is given in the diagram below. Select the option giving incorrect information regarding it.
If the number of chromosome present in the egg of a gymnosperm plant is 10, then the number of chromosomes present in the endosperm of the same plant is
Which of the following algae reproduce by non-motile spores and non-motile gametes?
The first plant group which possess seeds is
Salvinia differs from Polytrichum in having/being
The gymnosperms are heterosporous. They produce
Which one of the following algae shows diplontic life cycle?
In moss, sporophyte is formed on
The seed of Pinus is
Which of the following is not heterosporous pteridophyte?
Which of the following is true for the life cycle of bryophytes?
How many chromosomes are present in gymnosperm endosperm if the leaf has 12 chromosomes?
Find out the correct matching
Identify the incorrect statement.
Choose the incorrect pair.
Flagellated motile structures or cells are absent in a. green algae b. red algae c. angiosperms
A liverwort with two rows leaf like appendage on stem like structure is
Which amongst the following statements are correct ? a. Algae are chlorophyll-bearing, simple, thalloid, autotrophic organisms. b. They are largely aquatic. c. They occur in a variety of other habitats: moist stones, soils and wood.
Identify the incorrect statement.
Read the following statements and identify for which type of taxonomy it holds true? a. Number and codes are assigned to all the characters. b. Each character is given equal importance. c. Hundreds of characters can be considered.
Match column I with column II. Column I Column II A. Haplontic life cycle i Cycas B. Diplontic life cycle with gametic meiosis ii Adiantum C. Haplo-diplontic life cycle iii Fucus D. Diplontic life cycle with sporic meiosis iv Ulothrix Choose the correct answer from the options given below. A B C D 1 iii iv i ii 2 iv iii ii i 3 iii iv ii i 4 iv iii i ii
Match column I with column II. Column I Column II A. Haplontic life cycle i Cycas B. Diplontic life cycle with gametic meiosis ii Adiantum C. Haplo-diplontic life cycle iii Fucus D. Diplontic life cycle with sporic meiosis iv Ulothrix Choose the correct answer from the options given below. A B C D 1 iii iv i ii 2 iv iii ii i 3 iii iv ii i 4 iv iii i ii
Which of the following is a characteristic feature of kingdom Plantae? a. Cellulosic cell wall b. Eukaryotic cell type c. Autotrophic mode of nutrition
Assertion : Peat obtained from Sphagnum is used as packing material for trans-shipment of living material. Reason : Peat of Sphagnum can hold more water to maintain moisture around the living material or specimens or seedlings.
Highly differentiated and relatively more complex gametophytes are present in
Horizontally growing underground modified stem meant for perennation and vegetative reproduction is seen in
Which feature is not related to pteridophytes?
Choose the feature not related to Cycas .
Dimorphic branches are seen in A. Cycas B. Pinus C. Cedrus D. Ginkgo
Haploid stage in the life cycle is limited to only gametes in
Haplodiplontic life cycle with dominant sporophyte and reduced multicellular independent gametophytes are seen in
Major pigments found in Phaeophyceae are
Which one is wrongly matched?
Which of the following statement is incorrect about bryophytes?
Which of the following is true about bryophytes? a. Some of them are thalloid. b. They possess archegonia. c. They contain chloroplasts.
The plant group that forms spores and embryo but lacks vascular tissues and seeds is
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
Protonema is the juvenile filamentous gametophytic stage seen in the life cycle of
Prothallus of pteridophytes is
Match column I with column II and select the correct option. Column I Column II a. Psilopsida i. Psilotum b. Lycopsida ii. Equisetum c. Sphenopsida iii. Selaginella d. Pteropsida iv. Dryopteris a b c d 1. i ii iii iv 2. i iv iii ii 3. i iii ii iv 4. i iii iv ii
Which of the following shows haploid phase in gymnosperm?
Which of the given statements regarding haplontic life cycle is incorrect ?
Among the following, which do not have leaf like photosynthetic part known as frond in their body. A. Polysiphonia B. Ectocarpus C. Porphyra D. Dictyota E. Laminaria
Which is incorrect regarding algae ?
Choose incorrect statement.
Match the following Column-I Column-II a Red algae i Floridean starch b Brown algae ii Mannitol, laminarin c Green algae iii Starch iv Paramylum bodies a b c 1 ii iii i 2 i ii iii 3 iii ii i 4 ii i iii
Match the following Column-I Column-II a Pteris i Lycopsida b Selaginella ii Sphenopsida c Equisetum iii Psilopsida d Psilotum iv Ferns a b c d 1. iv i ii iii 2. ii i iii iv 3. i iv ii iii 4. iii ii i iv
Which of the following are partially heterotrophic plants: (a) Bladderwort (b) Venus fly trap (c) Nepenthes
Gametes are flagellated and similar in size in
In pteridophytes, sporophyte is
reproduce asexually by non motile spores and sexually by non-motile gametes. (a) Green algae (b) Brown algae (c) Red algae.
Which type of pollination is found in gymnosperms?
Match the following Column-I Column-II a Red algae i Floridean starch b Brown algae ii Mannitol, laminarin c Green algae iii Starch iv Paramylum bodies a b c 1 ii iii i 2 i ii iii 3 iii ii i 4 ii i iii
Study the diagram given below and identify the life cycle pattern.
Match the following Column-I Column-II a Pteris i Lycopsida b Selaginella ii Sphenopsida c Equisetum iii Psilopsida d Psilotum iv Ferns a b c d 1. iv i ii iii 2. ii i iii iv 3. i iv ii iii 4. iii ii i iv
Which of the following are partially heterotrophic plants: (a) Bladderwort (b) Venus fly trap (c) Nepenthes
Which of the following is peat or bog moss?
Identify the plants given below. a b c d 1. Salvinia Equisetum Fern Selaginella 2. Equisetum Selaginella Fern Salvinia 3. Selaginella Equisetum Fern Salvinia 4. Fern Equisetum Selaginella Salvinia
Which of the following is based on all observable characteristics?
Which one of the following shows isogamy with non flagellated gametes?
Besides paddy fields, cyanobacteria are also found inside vegetative part of
Read the following statements (A – E) and answer the question which follows them. (A) In liverworts, mosses, and ferns gametophytes are free living . (B) Gymnosperms and some ferns are heterosporous. (C) Sexual reproduction in Fucus , Volvox and Albugo is oogamous. (D) The sporophyte in liverworts is more elaborate than that in mosses. (E) Both Pinus and Marchantia are dioecious. How many of the above statements are correct?
Which of the following is responsible for peat formation?
The plant body is thalloid in
In which of the following, gametophyte is not independent free living?
Which one of the following is wrongly matched?
Male gametes are flagellated in
What is common in all the three, Funaria, Dryopteris and Ginkgo ?
Male gametophyte with least number of cells is present in
An alga which can be employed as food for human being is
Which of the following statements is correct?
Which one of the following is wrong statement?
Which one of the following statements is wrong?
Select the correct statement.
An example of colonial alga is
Zygotic meiosis is characteristic of
Select the mismatch.
From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in
Which one of the following is wrong statement?
Which one is wrongly matched?
Choose the wrong statement among the following.
Choose the feature not shown by Pteridophytes.
Choose the wrong statement among the following.
Which one of the following shows diplontic life cycle?
Among the following pairs choose the ones in which archegonia are present.
Haplo-diplontic life cycle with dominant vascular sporophyte and multicellular, independent and short living gametophyte is seen in
Mannitol is one of the reserve food materials in
Which of the following statement is wrong?
Strobili or cones are found in :
Red algae appear red in color due to the presence of the following pigment
Male and female gametophytes do not have an independent free living existence in:
Phycoerythrin is the major pigment in
Which of the following statements is incorrect about gymnosperms?
Identify and select the wrong statement out of the following:
Which one of the following statements is wrong?
In some plants male and female gametes do not show independent free living existance. The male and female gametophytes are few celled. They have integumented megasporangia. Life cycle in such plants is described as
Choose the incorrect statement.
Choose the common feature among Bryophytes, Pteridophytes and Gymnosperms.
Match the following List – I List – II A) Flagellated, motile isogametes I) Selaginella B) Non-flagellated isogametes II) Cladophora C) Flagellated anisogametes III) Spirogyra D) Flagellated male gamete and non-flagellated female gamete. IV) Eudorina
Male gametes are flagellated in
An organism of kingdom plantae grows in marine waters. It is having laminarin as reserve food materials and its zoospores have two unequal flagella on the lateral side. Its frond is dichotomously branched and shows oogamy during sexual reproduction. The organism is identified as
Match the following List – I List – II A) Moss plant I) Equisetum B) Fern II) Sphagnum C) Liverwort III) Salvinia D) Horse tail IV) Marchantia
Conifers are pollinated by:
Cell wall of algae is made up of:
The first archegoniate and first tracheophytes are:
Find the incorrect match w.r.t post fertilization events:
Select the mismatch.
Identify the life cycle patterns in bryophytes and pteridophytes
Zygotic meiosis is seen in
The plant body in phaeophyceae is usually attached to the substratum by a
Which one is wrongly matched?
Artificial system of classification:
Classification of plants based on cytological information like chromosome, number structure and behaviour is
Read the following statements carefully I. Based on all observable characteristics. II. Number and codes are assigned to all the characters. III. Given equal importance to each character and at the same time hundreds of characters are considered. The branch of taxonomy described by above given statements is
The thallus organization of Volvox is
Which of the following features are correct for algae ? A. Unicellular and non jacketed sex organs B. Well developed and differentiated sporophyte C. Presence of embryo D. Presence of motile male gametes
Zoospores are absent in which of the following algae ?
How many of the following are associated with members of red algae ? Laminarin and mannitol, non-motile spores, oogamous reproduction, phycocolloids in cell wall, complex post fertilization development.
Classical taxonomy includes
Match the following (Column I with Column II) Column I Column II A. Non-flagellated isogametes (i) Laminaria B. Source of algin (ii) Ectocarpus C. Complex post-fertilization developmental changes. (iii) Spirogyra D. Simple branched filamentous brown alga (iv) Porphyra A B C D 1. iii i iv ii 2. iii i ii iv 3. iv ii i iii 4. iv i iii ii
Consider the following statements A. They vary in colour from olive green to various shades of brown depending upon the amount of xanthophyll present. B. Present at the great depths in the oceans where relatively little light penetrates. C. The sexual reproduction shows considerable variation in the type and formation of sex cells. These statements are correct for which class of algae ? A B C 1. Phaeophyceae Chlorophyceae Rhodophyceae 2. Phaeophyceae Rhodophyceae Chlorophyceae 3. Chlorophyceae Rhodophyceae Phaeophyceae 4. Rhodophyceae Chlorophyceae Phaeophyceae
The mentioned features in the given box are related with which amongst the following organism? Plant body has holdfast, stipe and frond. Pyriform zoospores with two laterally inserted unequal flagella.
Which amongst the following statement is true for the figure of algae given below?
The algal form that is profusely branched and which may reach the height of 100 metres. A. May vary in colour from olive green to various shades of brown. B. Usually attached to substratum by a holdfast. C. Protoplast contain in addition to plastids, a centrally located vacuole and nucleus. D. Has biflagellated zoospores attached apically. Select correct option.
In which of the following alga all types of sexual reproduction, i.e. isogamous ,anisogamous and oogamous reproduction is found?
The main plant body of bryophytes is A. More differentiated than algae B. Lacked true roots, stem or leaves C. Gametophytic that usually occurs in damp, humid and shaded localities. D. Prostrate or erect and attached to substratum by unicellular or multicellular rhizoids.
Read the following statements w.r.t bryophytes and select the correct option : A. Haploid phase in the life cycle is more differentiated than that of algae. B. Zygote divides by meiosis immediately C.The sporophyte is not free living and dependent on gametophyte
The adult gametophytic plant body in moss is
Rhizoids of mosses are-
Bryophytes are called amphibians of the plant kingdom because
Identify the parts labeled as A,B,C and D : A B C D 1. Capsule Seta Leaves Multicellular rhizoids 2. Capsule Seta Leaves Unicellular rhizoids 3. Strobilus Foot Sporophyll Adventitious roots 4. Cone Stem Sporophyll Roots
Members of liverworts A. Grow usually in moist, shady habitats. B. Have free living sporophyte. C. Reproduce asexually by fragmentation of protonema. D. Have sporophyte differentiated into foot, seta and capsule.
Fill in the blanks correctly w.r.t life cycle of moss : A moss sporophyte A Spore mother cell B Spore C Leafy gametophyte
Select the incorrect statements w.r.t bryophytes :
In a moss, the sporophyte
Bryophytes resemble algae in which one of the following aspects?
Which if the following is a dioecious bryophyte ?
Which plant group is known for following features ? a. Used as a packaging material for tans-shipment of living material. b. They decompose rocks making the substrate suitable for growth of higher plants.
Which of these may not be an ecological importance of bryophytes ?
Which of the following is not related to importance of pteridophytes?
Pteris,Selaginella and Equisetum resemble in Possessing
The spread of living pteridophytes is limited and restricted to narrow geographical region because of
Which of the following is not a member of class pteridosida?
Heterosporous pteridophytes A. Have events which is precursor to the seed habit. B. Shows female gametophyte retained on the parent sporophyte for variable periods. C. Are exemplified by Selaginella and Salvinia. D. Produce monoecious gametophyte.
Recognize the figure and identify incorrect labelling:
Read the following statements w.r.t gymnosperms and state true(T) or false(F): A. Include medium size to tall trees and shrubs of perennial habit. B. Ovules remain exposed, both before and after fertilization. C. All the members posses tap root system in association with fungal filament. D. It is the smallest group of plant kingdom.
Select incorrect statement w.r.t naked seeded plants.
Read the following statements carefully w.r.t gymnosperms: A. Thick cuticle and sunken stomata present in the leaves of gymnosperms help to reduce water loss. B. All gymnosperms are heterosporous. C. Sequoia is one of the tallest gymnosperms. D. In Pinus , the male and female gametophyte have free-living existence. How many above given statement are correct ?
The integumented indehiscent megasporangium present in Pinus is called
Identify the statement as true (T) or false (F) w.r.t gymnosperms: A. The main plant body is always diploid. B. The microspores develop into male gametophyte which is highly reduced and confined to only a limited number of cells. C. Pollination is direct and occurs through anemophily. D. Male and female gametophyte do not show free-living existence.
Consider the following statements and select the correct option w.r.t Cycas : A.Unbranched stem B.Dioecious plant C.Leaves are simple,needle like D.Presence of coralloid roots E.Pollen grains are carried by air and insects
Both male and female gametophytes do not show free-living existence in
Sulphur shower is the phenomenon related to
The wing in the Pinus seed develops from
if the endosperm cell of Pinus contains 12 chromosomes,then that will be the chromosome number in its megasporophyll,pollen,embryo,root respectively?
Identify the organism that has flagellated zoospores, pyrenoids in chloroplast and dominance of pigments chlorophyll a and b.
Which of the following structures degenerate after fertilization in angiosperms?
Double fertilization is unique to angiosperms in which one male gamete fuse with A to from B and the other male gamete fuse with C to from D . Choose the correct option for A,B,C and D : A B C D 1. Egg cell Zygote Polar nuclei Secondary nucleus 2. Egg cell Zygote Secondary nucleus Primary endosperm nucleus 3. Egg cell Embryo Antipodals Perisperm 4. Synergids Embryo Central Cell Endosperm
Read the following statements : A.Seeds are enclosed by fruits B. The embryo sac formation is preceded by meiosis C. Endosperm provides nourishment to the developing embryo D.Pollen grains after dispersal from anther are carried by wind or various other agencies. E.Embryo development is holoblastic How many above statements are correct for angiosperms?
How many structures are diploid among synergids, antipodals, pollen grain, secondary nucleus, embryo, nucellus and integuments ?
The most common type of life cycle in algae is
Consider the following statements about the sporophytic generation in Pteridophytes A. Generation that produces the spores B.The generation that possesses vascular tissue C.The diploid generation Correct statements are
Endosperm of gymnosperm is equivalent to of angiosperms.
How many of the following organisms show haplodiplontic life cycle ? Volvox,Fucus, Kelp ,Ectocarpus,Polysiphonia,Funaria,Dryopteris, Lily , Sunflower ,Cycas,Ephedra,Pinus,Eucalyptus,Selaginella,Azolla
All statements are true for the given life cycle pattern, except
Choose the correct pair
Study the following features. a. A plant is used as packing material for transhipment of living specimens. b. It also plays a key role in decomposing the rock making the substance suitable for growth of higher plants. The features are shown by a plant belong to
Which one is correctly matched?
Which among the following are heterosporous plants? A. Selaginella B. Pinus C. Maize D. Funaria
The common character between Gracilaria , Laminaria , Spirogyra and Nostoc is:
Identify the organism that has diplontic life cycle:
Thallus organization of Volvox is
Coralloid roots have symbiotic association with
Peat is formed by
Find the incorrect statement with respect to angiosperms.
Read the following characters and identify the plant to which they are referring to: (a) They usually occur in damp, humid and shaded localities. (b) First embryophytes (c) First archegoniate (d) The sporophyte is not free-living but attached to the photosynthetic gametophyte
Match Column I with Column II Column I Column II (a) Algin (i) Taxus , a gymnosperm (b) Agar (ii) Laminaria , a brown alga (c) Peat formation (iii) Gellidium , a red alga (d) Drug taxol (iv) Sphagnum , a bryophyte
Choose the feature shown by only Gymnosperms
Who suggested the five kingdom of classifications ?
The earliest classification used only
characters are easily affected by environment
Chemotaxonomy is based on
The characters used to classify organism when no fossil evidence is supportive is
Volvox is a
In terms of reproduction algae do not show
Chlorophyll bearing, simple thalloid, autotropic and mainly aquatic organisms are
Vegetative reproduction in algae is by
Marine alga used as food is
Alga showing both isogamy and anisogamy is
Spore formation in algae occur during
Hydrocolloids are secreted by
Isogamy is seen in
Carrageen is secreted by
Male gamete is small and motile and female gamete is large and non-motile in
Green algae are kept in
Agar is commercially obtained from:
Algin is secreted by
Microbes are cultured on the product secreted by
The organism which contain chlorophyll ‘a’ and ‘b’, cup-shaped chloroplast and is unicellular is
Dominance of chlorophyll ‘a’ and ‘b’, pyrenoids and starch as stored food are found in
Cell wall of green algae is made up of:
The alga rich in proteins and used as food by space travelers is
Pyrenoids store
Chlorophyceae are grass green due to the dominance of pigment
Zoospores are formed during asexual reproduction of algae and formed in
Sexual reproduction is of isogamous, anisogamous and oogamous in
Filamentous brown alga is
Algae which are primarily marine is
Green alga that exclusively shows oogamy is
Kelps represent the group of
Kelps may reach a height up to-
The algae which possess chlorophyll a, c, and fucoxanthin belong to
Brown algae vary in colour from A to various shades of B depending on the amount of C pigment and D present in them. A B C D 1. fucoxanthin xanthophyll blue brown 2. blue brown fucoxanthin xanthophyll 3. yellow brown fucoxanthin xanthophyll 4. olive green brown fucoxanthin xanthophyll
Laminaria and mannitol are stored food of
The plant body of algae is divided in holdfast, stipe and fronds in
The plant body attached to substratum in brown algae is through
The photosynthetic leaf like organs found in some of the algae are called
Zoospores of brown algae are
The biflagellate pear-shaped zoospores are characteristics of
Sexual reproduction shown by members of brown algae is (a) isogamous (b) anisogamous (c) oogamous.
Pyriform gametes means
The arrangement of flagella in brown algae is
Dictyota belongs to
Red algae are red due to the presence of pigment
Red algae are found in
Floridean starch is stored food found in
Floridean starch is structurally similar to
Algae found in the areas where little light penetrates are
Algae found in areas with abundant light as well as areas of great depths with no light is
Sexual reproduction of oogamous type is found in
Red algae are
The spores and gametes of red algae are resoectively
Air bladders are present in
Fronds are found in which of the following algae? I. Laminaria II. Fucus III. Dictyota IV. Porphyra
How many of the following algae belong to the category of red algae? Polysiphonia, Gelidium, Laminaria, Spirogyra, Porphyra, Fucus, Chlamydomonas
type of sexual reproduction is shown by the members of Rhodophyceae.
Members of phaeophyceae are
Polysulphate esters are present in the cell walls of
Pear-shaped gametes are found in
Organisms that play an important role in plant succession on bare rocks are
Bryophytes are found in
Bryophytes requires for fertilization
The complex post-fertilization events are seen in
Which of the following statement is incorrect with respect to bryophytes?
Sporophyte of bryophytes is I. Multicellular body II. Parasite on gametophyte III. Shows the formation of spores as a result of meiosis IV. Derives the water from gametophytes
forms gametophyte of bryophytes.
The sporophyte of bryophytes develops after
The gametophyte possessing leaf like, root like and stem like structure is
The organism having more differentiated gametophytic plant body than algae is
The male gamete of bryophyte is called
Female sex organ of bryophytes is
The main plant body of bryophyte is
The sex organs in bryophytes are
Archegonium contains egg cells in bryophytes
Female sex organ of bryophyte is called
Division in zygote results in the formation of in bryophytes
Gametophyte of bryophyte is
Organisms which colonizes the bare rocks after lichens are
Peat used in transshipment is a product obtained from
Mosses are ecologically important because I. The first organism to colonize bare rocks. II. It decomposes rocks making them suitable for the growth of higher plant. III. It forms dense mats on soil. IV. It reduces the impact of falling rain and soil erosion.
Peat which is long used as fuel is a product obtained from-
Organisms participating as one of the pioneers in ecological succession on rock belong to
Liverworts are found in
Asexual reproduction in liverworts takes place by
The thallus of liverworts is
Marchantia is
Sexual reproduction in liverworts takes place by
The sporophyte of mosses
Spores in bryophytes are formed
Gemmae in liverworts are formed during-
In the capsule of sporophyte of bryophytes
Zygote of bryophyte
Which one is correct about protonema?
Protonema is found in
The dominant stage in the life cycle of mosses has
Leafy stage in mosses develops from
Sex organs in mosses develop on
Sporophyte of mosses is more elaborated and complex than
Vegetative reproduction in mosses takes place by-
Spores in bryophytes are formed by
Elaborate mechanism of spore dispersal is found in
The plants frequently grown as ornamentals and are used for medicinal purpose belong to
Sphagnum belongs to
The first terrestrial plants to posses vascular tissues are
The main plant body of pteridophytes is
The main plant body of pteridophytes is
Pteridophytes have
Which one is false about pteridophyte?
Which one is false about pteridophyte?
Prothallus is the gametophyte of
The gametophyte of pteridophyte grows in damp, moist and shady places because
Macrophylls leaves are characteristics of
Vascular plants which do not bear seeds are
The production of spores by the spore mother cells is the result of
Pteridophyte having microphylls is
The leaves bearing sporangia are called
Which of the following are correct about pteridophytes? I. The sporophytes bear sporangia that are formed on the sporophylls. II. They are frequently grown as ornamentals. III. They are the first terrestrial plants to forms seeds. IV. Vascular tissues are absent in pteridophytes. V. some species flourish well in sandy soil conditions.
Cones in pteridophytes are formed in
Spores in pteridophytes give rise to
The male and female sex organs of pteridophyte are called
Sex organs in pteridophytes are formed on the
Zygote of pteridophytes
Heterosporous pteridophytes are:
Majority of the pteridophytes are I. Homosporous and produce only one kind of spores. II. Aquatic in nature. III. Heterosporus and produce small and large spores. IV. Restricted to narrow geographical zone because of specific requirement of water.
Heterosporous plants are
Megaspore germinate into
Development of seed habit is initiated in
The female gametophytes are retained on the parent sporophyte in
In heterosporous pteridophyte
Vascular plants, with seeds but no fruits are
Naked seed plants are
Ovules are not enclosed by the ovaries in
The tallest gymnosperm among the following is
Gymnosperms
Coralloid roots having association with N 2 fixing bacteria are found in
Which of the following are correct for gymnosperms? I. They are heterosporous. II. They are the first vascular plants. III. Posses fruits IV. Requires water for fertilization.
In gymnosperms, the mycorrhizal association is found in
Which of the following are correct for gymnosperms? I. Have mainly adventitious root system. II. The leaves in gymnosperms can withstand extreme temperature, humidity and wind. III. Microspores are produced in microsporangia. IV. They include medium or tall sized trees and shrubs.
Which of the following statements are correct for conifers? I. Needle like leaves to reduce transpiration II. Thick cuticle on leaves. III. Sunken stomata to reduce water loss. IV. The main plant body is gametophyte.
Male and female cones are formed on the same tree of
Male gametophyte which is highly reduced and confined to only limited numbers of cells is called
Which of the following sequence is correct?
In Cycas
In gymnosperms
The female gametophyte of gymnosperms
Choose the incorrect one with respect to megaspore mother cell of angiosperms.
In gymnosperms, the male and female gametophyte. I. Do not have independent free living existence. II. Remain within the sporangia retained on parent sporophyte. III. May be born on same or different tree. IV. Perform meiosis to produce gametes.
Pollination in gymnosperms takes place by
Microscopic angiosperm is
Angiosperms include
Angiosperms include
Male sex organ in angiosperm is
The height of Eucalyptus tree is approximately 100 meters.
Male sex organ in flower is
The pistil in flower encloses
The female sex organ of flower is called
Embryo sacs in angiosperms is
Embryo sac of angiosperms posses
The cells of embryo sac are
Egg apparatus of angiosperms contains
The pistil in angiosperm is made up of
Diploid secondary nucleus in embryo sac of angiosperm is the product of
Ovary is present in
Fruit formation in angiosperm takes place
Synergids and antipodals
In double fertilization
Double fertilization is the unique characterisitic feature of
Zygote after multiplication in angiosperm develops into
Meiosis in plants can take place in
The haploid plant body produces and is referred to as
In plants with haplontic life cycle, the sporophytic generation is represented by
Haploid spore divides by to form haploid plant body
Volvox , S pirogyra, Chlamydomonas show
In haplontic life cycle, the zygote divides by
Sporophyte is dominant, photosynthetic and independent phase but gametophytes are parasitic on sporophyte and have limited number of cells show the following type of life cycle
The food is stored in the form of laminarin in:
The plant in which sporophylls together associate and form distinct compact structures called strobili is:
All are the features of Cycas except:
Diplontic life cycle is seen in
Most of the green algae show
When both the phases of life cycle are multicellular, i.e., haploid and diploid phases are more than one celled
In bryophytes
Algae showing haplodiplontic life cycle are
How many organisms show haplodiplontic life cycle? Sphagnum, Volvox, Ulothrix, Marchantia, Polytrichum, Selaginella, Pinus, Cedrus, Ectocarpus, Polysiphonia
How many of the following plants show diplontic life cycle? Selaginella, Equisetum, Cycas, Cedrus, Ectocarpus, Fucus, Sequoia
Which alga shows diplontic life cycle?
Which of the following organisms show haplontic life cycle?
Gametogenesis in organism showing haplontic life cycle takes place in
Choose the correct pair
Identify a, b, c in diagram:
Identify the A, B, C and D shown in this figure?
Identify a, b, c in diagram:
Identify the A, B and C shown in this figure?
Identify A and B:
What indicates A to E in the below figure?
Identify the A, B and C shown in this figure?
Identify the A, B and C.
Among the following choose the one that has diplontic life cycle.
What indicates A, B and C in this figure.
In diplontic life cycle gametogenesis takes place by
Laminarin is the stored food in
Which of the following possess vascular tissues but lacks seeds?
Which of the following systems of classification involves the usage of one or few morphological characters for grouping the organisms?
Eucalyptus is different from Cedrus because of the presence of
Which group of plants have archegonia, vascular tissues, embryos and always heterosporous
The significance of heterospory is :
Statement A: Our understanding of Plant Kingdom has changed over time. Statement B: Whittaker’s Plant kingdom does not include Blue green algae.
Plant Kingdom of Whittaker includes:
Both vegetative and floral characters are given equal importance in
Classification of plants based on chromosome number is referred as
Confusions in phylogenetic system of classification can resolved by considering the following I.Morphological characters II. Chromosomal characters III. Anatomical characters IV. Chemical constituents of cells
Confusions in phylogenetic system of classification can resolved by considering the following I.Morphological characters II. Chromosomal characters III. Anatomical characters IV. Chemical constituents of cells
Bentham and Hooker's classification of flowering plants is an example for
Only morphological characters are given importance in the following system of classification
External morphological characters are considered in I. Artificial system of classification II. Natural system of classification III. Phylogenetic system of classification IV. Numerical taxonomy
This is multicelluar but not filamentous alga
A plant that is present on sloth bear as epizoic organism is a
A plant that is present on sloth bear as epizoic organism is a
Horsetails belong to
The Pteridophytes with medicinal value are A. Psilopsids B. Lycopsids C. Ferns D. Sphenopsids
Pteridophytes are frequently grown as:
Cones or Strobili are aggregation of
Choose the incorrect statements. I. Pteridophytes flourish in cool, damp and shady places II. Pteridophytes do not occur in sandy soils III. Pteriodophytes are phanerogams IV. Pteridophytes have the dominant sporophytic stage
Distribution of pteridophytes is limited to narrow geographical regions on this planet because-
Prothallus is the term given to
Statement A: Dimorphic gametophytes are seen in Selaginella. Statement B: Selaginella is heterosporous.
This is precursor to seed habit
Rhizome is seen in
Heterophylly is shown by
Identify Ferns among the following A. Dryopteris B. Adiantum C. Equisetum D. Lycopodium
This event shown by pteridophytes is an important step in evolution-
Naked seeded plants are:
In gymnosperms, the plants are not usually:
Linnaeus system of classification is considered as system.
What is common among Ginkgo , Adiantum and Sphagnum ?
Choose the correct match
Phylogenetic system of classification emphasizes on
In Gymnsoperms
Choose the incorrect statement.
Choose the correct statement
Gymnosperms are not:
Statement A : Pinus is dioecious Statement B: It has both male and female cones on the same plant
Each female gametophyte of Gymnsperm has the following number of Archegonia
Choose the correct statement
This is few celled in Gymnosperms
Dimorphic branches are seen in
Non-photosynthetic gametophytes are present in
Statement A: Pollination in Gymnosperms is direct Statement B: In Gymnosperms pollen grains are deposited on ovule
In Gymnosperms
Largest ovules in the plant kingdom are seen in
Identify the features common in between Adiantum and Cedrus: A. Photosynthetic sporophyte B. Archegonia as female sex organs C. Presence of complex tissues D. Absence of fruits
Which statement is correct for gymnosperms.
Pollen chamber of gymnosperms is present in the
Statement A: Fertilization in Gymnosperms is described as Siphonogamous Statemetn B: Pollen tubes carry the male gametes to the site of archegonia
Choose the incorrect statement with respect to Gymnosperms.
Independent sporophytes are seen in A. Bryophytes B. Pteridophytes C. Gymnosperms
Gymnosperms are different from Bryophytes in showing A. Heterospory B. Siphonogamy C. the presence of Archegonia D. no need of water for fertilisation
Statement A: Seeds of Gymnosperms usually have more than one embryo in their seeds. Statement B: The female gametophyte retained in the ovule has more than one archegonia.
Identify the pair of feaures common to both Gymnosperms and Bryophytes
The common features between Cycas and Pteris are A. Photosynthetic sporophytes B. Presence of xylem and phloem C. Presence of Pinnate compound leaves
Ginkgo has
Angiosperms are unique because they possess-
This is the main feature of angiosperms-
The smallest angiosperm is
Choose the features shown by Dicots A. Tap root system B. Embryo with two cotyledons C. Tetramerous flowers D. Secondary growth
This feature is shown by none of the monocots.
True flowers are present in A. Gymnosperms B. Dicots C. Monocots
The tallest angiosperm is
Pistil of angiosperms is:
Male sex organ of angiosperms is-
How many megaspore mothrer cells are usually present in a ovule?
In Angiosperms pollination is mainly carried out by
This cell of embryo sac shows the transformation into diploid cell from haploid cell prior to fertilisation.
Statement A: Primary Endosperm Nucleus is triploid Statement B: It is formed by the fusion of male gamete with synergids
The unique feature of angiosperms is
The common feature among Bryophytes, Pteridophytes, Gymnosperms and Angiosperms is
Choose the incorrect ones among the following I. Plants with diplontic life cycle do not have multicellular gametophyte. II. Plants with haplontic life cycle may have either unicellular or multicellular gametophyte. III. Plants with haplodiplontic life cycle have multicellular gametophyte and unicellular sporophyte.
Plant with haplodiplontic life cycle and dominant gametophyte are:
haploid spores are not formed due to meiosis in the life cycle of the following organisms with haplointic life cycle A. Volvox B. Spirogyra C. Chlamydomonas
Statement A: Male gametophytes of Angiosperms are 3 celled and female gametophyte is 7celled. Statement B: Plants with few celled or single celled gametophytes have diplontic life cycle
Single celled sporophyte is seen in the life cycle of A. Chlamydomonas B. Spirogyra C. Volvox
Life cycle is Fucus is described as-
This group of plants show all types of life cycles-
The life cycle in plants having independent sporophyte and gametophyte is-
Alga with isogamy and haplodiplontic life cycle is
Parasitic gametophytes are seen in
Gymnosperms bear seeds but lack fruits because they lack
Choose the correct pair
The unique feature of angiosperms is
The substance that is used to grow microbes and is also used in preparations of ice-creams and jellies is commercially obtained from:
Read the following statement and identify the system of classification a. A classification system that considers not only the external features, but also internal features, like ultrastructure, anatomy, embryology and phytochemistry. b. This system of classification was followed by George Bentham and Joseph Dalton Hooker.
Among the following choose the plants that have archegonia A. Funaria B. Selaginella C. Ginkgo D. Wolffia
Choose the correct statement
A substance which is used to grow microbes and in preparations of ice-creams and jellies is obtained from:
Identify the alga rich in proteins is used as food supplement even by space travelers.
Main plant body is haploid in:
Choose the incorrect statement.
Prothallus is seen in:
A is the feature of pteridophytes shows similarity with bryophytes and B is the feature of pteridophyte showing similarity with gymnosperms. A and B are respectively
Statement A: Fusing gametes are dissimilar in size in Eudorina. Statement B: Eudorina reproduces sexually by oogamy.
The artificial system of classification given by Linnaeus is mainly based on
Match Column I with Column II Column I Column II a. Isogamy with flagellated gametes i. Spirogyra b. Isogamy with non-flagellated gametes ii. Ulothrix c. Anisogamy iii. Volvox d. Oogamy iv. Eudorina
Which amongst the following has thalloid plant body?
Read the following characteristics and identify the plant. (a) Has vascular tissues (b) Main plant body is a sporophyte (c) Homosporous (d) Seeds are absent
Identify an alga showing diplontic life cycle pattern.
Ectocarpus shows which of the following type of life cycle pattern?
Which of the following is an example of heterosporous pteridophyte?
Vascular tissues for the first time appeared in which of the following plant group?
Identify the gymnosperm plant possessing unbranched stems.
Which of the following plant possess naked seeds?
All seed bearing plants show which of the following type of life cycle pattern?
The nucellus in gymnosperm is protected by covering and the composite structure is called
The giant redwood tree Sequoia is a:
What is common amongst the members of Chlorophyceae, Rhodophyceae and Phaeophyceae?
Identify the alga storing food in the form of laminarin.
Gametic meiosis is observed in
Smallest angiosperm is
Match algae with its form and select the correct answer choice. Column I Column II a. Volvox i. Filamentous b. Ulothrix ii. Massive plant bodies c. Kelps iii. Colonial
Find the incorrect match w.r.t. shapes of chloroplast in algae
Identify the haploid structures found in Funaria
Identify the cryptogam that is tracheophytic, archegoniate, embryophyte and produces cones:
Which one is wrongly matched?
Which one of the following features is not related to red algae?
Identify the system of classification that gave equal weightage to vegetative and sexual characteristics and used only gross superficial morphological characters such as habit, colour, number and shape of leaves as the basis for classification.
Choose the alga whose vegetative body has a structure called holdfast.
Which among the following has protonemal stage in its life cycle?
Gametophytes do not show independent free-living existence in
Which of the following is wrongly matched?
Match column I with column II and choose the correct match. Column I Column II A Homosporous, atracheate, embryophyte i Cycas B Heterosporous, tracheate, archegoniate ii Dryopteris C Homosporous, tracheate embryophyte iii Salvinia D Heterosporous, tracheate, spermatophyte iv Sphagnum
Dichotomously branched midrib is seen in the fronds of
Which one of the following is homosporous?
The dominant phase in the life cycle of pteridophyte is nutritionally equivalent to the :
Find the incorrect match.
The system of classification which assumes that all organisms of a taxa have common ancestor is
Choose the incorrect match.
Male gametophytic generation which is highly reduced and is confined to only a limited number of cells in:
Volvox is
First plants with vascular tissues are
Double fertilisation is an unique event to which of the given plant groups?
Embryogenesis is absent in which of the given plant groups?
Algae are/have
Select the incorrect match from the following:
The labellings ‘a’ and ‘b’ for the Liverworts are:
Which of the following is an isogamous plant, producing non-flagellated gametes?
In fern, sporangia are borne on the
Plants lacking seed and vascular tissue but forming spores and embryo are
Microsporangia of Cycas is formed
The development of Funaria gametophyte always initiated from
Comparable to angiosperms which of the following algae exhibits diplontic life cycle?
The common feature that is shared by Funaria , Dryopteris and Ginkgo is
Which of the following represents a diploid structure?
Only zygote represents the sporophytic generation in
Algae and fungi are characterized by the possession of
A newly discovered plant was found to be a gymnosperm because it.
Lichens are ecologically important as
The tallest tree species of the gymnosperms is
In Dryopteris , meiosis occurs at the time of
In Funaria , which of the following represents the juvenile state?
Filamentous alga is
Which classification system accepts that organisms belonging to the same taxa have a common ancestor?
Main plant body of bryophytes is gametophyte. This body
Select the mismatched pair.
Select the feature of mosses which makes them different from ferns.
Asexual reproduction in liverworts takes place by formation of specialised structures called gemmae. All of the following are true about gemmae, except
Select the pteridophyte that belongs to the class Psilopsida .
The plant body of liverwort is thalloid as in
Prothallus is
Consider the following statements regarding gymnosperms and choose the correct option. I. In gymnosperms, the male and female gametophytes have an independent existence. II. In gymnosperms, the multicellular female gametophyte is retained within the megasporangium. III. All gymnosperms are heterosporous. Of these statements
Identify the correct statements. I The sporophyte in liverworts is more elaborate than in mosses. II Salvinia is heterosporous III The life cycle in all seed-bearing plants is diplontic. IV In Pinus, male and female cones are borne on different trees.
What of the following is / are correct about Cycas ?
Which of the following are included as tracheophytes?
Gymnosperms are named so because of the presence of
The (i) vary in colour from olive green to various shades of brown depending upon the amount of (ii)
Which of the following is an incorrect statement?
In which of the following male and female gametophyte have an independent free living existence?
Select the incorrect match
Recognize the figure and find out the CORRECT match.
Ulothrix and Spirogyra are :
Which of the following are correct for numerical taxonomy? i Based on all observable characteristics. ii Uses chemical constituents of the plant to resolved confusion. iii Based on cytological information like chromosome number, structure and behavior. iv Numbers and codes assigned to a few characters. v At the same time, hundreds of characters can be considered. vi Carried out using computers.
Which of the following are the characteristics of phaeophyceae? i Posses chlorophyll a, c, carotenoids and xanthophylls. ii Food stored is in the form of laminarin and mannitol iii Asexual reproduction by biflagellate zoozpores that have two equal apically attached flagella. iv Cell wall has cellulose and algin. v Sexual reproduction is ooqamous vi Gametes have two laterally attached flagella.
Identify the incorrect statement w.r.t. mosses.
Match List I with List II. List I List II A Amphibians of the plant kingdom I Angiosperms B Vascular cryoptogams II Gymnosperms C Archegoniate seed plants III Pteridophytes D Non-archegoniate seed plants IV Bryophytes Choose the correct answer from the options given below. A B C D 1 III IV I II 2 IV III I II 3 IV II I III 4 IV III II I
Assertion : Linnaeus classification of plants is an artificial system. Reason : Linnaeus considered vegetative characters for classification of plants.
Linnaeus considered which amongst the following character for the classification of plants?
If plants are classified on the basis of number and shape of leaves, it is described as
Which among the following are incorrect statements? A. Phytochemistry evidences are considered in natural system of classification. B. Bentham and Hooker classified both flowering and non-flowering plants. C. Phylogenetic system of classification is not based on fossil evidences.
Cytotaxonomy is not based on one of the following.
Choose the correct statement with respect to algae.
Which among the following algae, asexually reproduces by daughter colony formation?
Match List I with List II. List I List II A Non-flagellated isogametes i Fucus B Flagellated anisogametes ii Eudorina C Flagellated isogametes iii Ulothrix D Stationary female gamete and flagellated male gamete iv Spirogyra Choose the correct answer from the following options. A B C D 1 iv ii iii i 2 iv iii ii i 3 iv ii i iii 4 ii iv i iii
Among the following choose the algae that are not used as food. A. Porpyra B. Spirogyra C. Ulothrix D. Volvox
The following algal product is used in the preparation of ice-creams and jellies.
Which one among the following algae is used as food supplement by space travellers?
Choose the feature not shown by green algae.
Which one among the given is green alga?
Which among the following are absent in pyrenoids? A. Polysaccharides B. Pigments C. Proteins D. Lipids
Assertion : Members of chlorophyceae are also known as green algae. Reason : Green algae have same type of chlorophyllous pigments as seen in euglenoids and higher plants.
Assertion : Ectocarpus is a brown alga. Reason : Ectocarpus has a pigment fucoxanthin in higher amounts, reserve food as laminarin and mannitol and chlorophylls a and c.
Choose the incorrect statement with respect to phaeophyceae of algae.
Choose the correct statement with respect to red algae.
Carpogonium is the female sex organ of
Match Column I with Column II and select the correct match. Column I Column II a. Numerical Taxonomy i. Based on chromosome number, structure, behaviour. b. Cytotaxonomy ii. Based on chemical constituents of the plant. c. Chemotaxonomy iii. Carried out by using computers and is based on all observable characteristics. a b c 1. iii ii i 2. iii i ii 3. i ii iii 4. ii i iii
Algal cell walls are made up of
Identify the alga that exhibits anisogamy.
Among the following, which have leaf like photosynthetic part known as frond in their body. A. Polysiphonia B. Ectocarpus C. Porphyra D. Dictyota E. Laminaria
Kelps are
Rhizoids are absent in
Match column I with column II and select the correct match. Column I Column II a. Chlorophyceae i. Floridean starch b. Phaeophyceae ii. Mannitol c. Rhodophyceae iii. Starch a b c 1. iii ii i 2. iii i ii 3. ii i iii 4. i ii iii
Gemmae are
All the given organisms are filamentous, except
Which amongst the following organisms have flagellated isogametes?
The artificial system of classification is given by A and is based on B . A B 1. Linnaeus ultrastructure and anatomy 2. George Bentham and Joseph Dalton Hooker vegetative characters 3. Linnaeus androecium structure 4. Engler and Prantl evolutionary relationship
Identify the correct statement w.r.t. the artificial system of classification.
Read the following statements and select the incorrect one(s). (a) Phylogenetic system of classification is based on possible evolution of different traits. (b) All members of bryophytes have non-jacketed and unicellular sex organs. (c) Natural system of classification often results in placing of unrelated organism in a group.
Identify the incorrect match.
Which of the following algae can be used as food? (a) Porphyra (b) Laminaria (c) Sargassum
Which among the following play a role in succession by decomposing the rocks and making the substrate suitable for the growth of higher plants?
Prothallus is
Which among the following features are correct for Salvinia ? I. It is heterophyllous II. It is free floating hydrophyte III. It is heterosporous IV. It has macrophylls
One of the following events is precursor to seed habit and considered as important step in evolution.
Statement A : All pteridophytes have macrophylls. Statement B : All pteridophytes have monoecious gametophytes.
Ginkgo is a
Roots modified for nitrogen nutrition are present in
In the life cycle of which of the following the diploid cells do not undergo mitosis but undergo meiosis. A. Volvox B. Spirogyra C. Ectocarpus
Choose the incorrect statements. A. In plants with haplontic life cycle, the sporophyte is always single celled. B. In plants with diplontic life cycle the gametophytes are always single celled. C. In plants with haplodiplontic life cycle the gametophytes and sporophytes are always multicellular and independent.
Ulothrix , a green alga, is placed in chlorophyceae because of a. aquatic habitat b. presence of chlorophyll a and b c. cellulosic cell wall and mannitol as food reserve
Isomorphic alternation of generations is seen in
Statement A : Asexual reproduction in Chlamydomonas is mainly by aplanospores produced in sporangia. Statement B : In class Chlorophyceae the sexual reproduction takes place by isogamy, anisogamy and oogamy.
Identify the given figures of algae and select the correct option. A B 1. Fucus Polysiphonia 2. Dictyota Polysiphonia 3. Dictyota Porphyra 4. Porphyra Polysiphonia
Bryophytes occur in moist places, because
Marchantia is considered as a heterothallic plant because it is
Statement A : Sphagnum is slowly carbonised, compressed and fossilised over thousands of years to produce a dark spongy mass called peat. Statement B : Peat helps to keep soil porous and it also improves water holding capacity of the soil.
Assertion : Mosses are of great ecological importance. Reason : Mosses along with lichens are the first organisms to colonise rocks to form soil.
Pteridophytes differ from mosses/bryophytes in possessing
Which of the following are heterosporous pteridophytes? I. Pteris II. Selaginella III. Equisetum IV. Marsilea
Sporophyte became more dominant than gametophyte for the first time in which of the following group of plants?
Selaginella and Salvinia are considered to represent a significant step towards evolution of seed habit because
Club moss is grouped under
X is the seed plant in which the seeds remain exposed over the surface of the megasporophylls because the latter are not folded to form pistils. Which of the following is not a regular feature of the given plant X?
Consider the following statements regarding gymnosperms and choose the correct option. I. In gymnosperms, the male and female gametophytes have an independent existence. II. In gymnosperms, the multicellular female gametophyte is retained within the megasporangium. III. The gymnosperms are heterosporous.
Choose the incorrect pair
Choose the incorrect statement with respect to phaeophyceae of algae.
Dichotomously branched frond is seen in
Choose the incorrect pair
In pteridophytes, sporophyte is
Syngamy and triple fusion are unique features of
Gametophytes have independent free living existence in
Which type of pollination is found in gymnosperms?
Study the diagram given below and identify the life cycle pattern.
Identify the plants given below. a b c d 1. Salvinia Equisetum Fern Selaginella 2. Equisetum Selaginella Fern Salvinia 3. Selaginella Equisetum Fern Salvinia 4. Fern Equisetum Selaginella Salvinia
Read the following statements Assertion (A): Cell wall of red algae contain cellulose, pectin and polysulphate esters. Reason (B): Cell wall of red algae lack water holding substances.
Haplo-diplontic life cycle is found in all the following except
Syngamy and triple fusion are unique features of
Gametophytes have independent free living existence in
Choose incorrect statement.
Read the following statements Assertion (A): Cell wall of red algae contain cellulose, pectin and polysulphate esters. Reason (B): Cell wall of red algae lack water holding substances.
Find the odd one out w.r.t. brown algae.
Gametes are flagellated and similar in size in
