Structural Organisation In Animals And Plants Important Questions for Re NEET 2026

Structural Organisation in Animals and Plants is an important chapter for students preparing for Re NEET 2026. This chapter helps students understand how different parts of plants and animals are arranged and how they perform their functions. In plants, students learn about tissues, root, stem, leaf, flower, inflorescence, seed structure, floral formula, and family features. In animals, the chapter mainly focuses on the structural features of organisms like the frog, including its external characters, digestive system, circulatory system, reproductive system, and other important organs.

Practicing important questions from Structural Organisation in Animals and Plants can help students revise the chapter in a better way. Many NEET questions are directly based on NCERT lines, diagrams, examples, and definitions from this chapter. Topics like bulliform cells, Casparian strips, monocot stem, seed parts, racemose inflorescence, floral formula, and male frog characters are especially important for exam preparation.

These Structural Organisation in Animals and Plants important questions for Re NEET 2026 are designed to help students check their understanding, improve accuracy, and revise key concepts quickly. Regular practice of these questions can boost confidence and support better performance in the Biology section of NEET.

Important MCQs for Structural Organisation In Animals And Plants for Re-NEET 2026

Ques 1. The main function of bulliform cells in grasses is to:

(1) perform photosynthesis
(2) transport water
(3) minimize water loss during water stress
(4) provide mechanical support

Answer: (3) minimize water loss during water stress

Ques 2. Casparian strips are mainly found in:

(1) pericycle
(2) endodermis
(3) epidermis
(4) cortex

Answer: (2) endodermis

Ques 3. Casparian strips are made up of:

(1) lignin and cutin
(2) suberin and lignin
(3) cellulose and pectin
(4) pectin and chitin

Answer: (2) suberin and lignin

Ques 4. The tissue present between xylem and phloem in roots is called:

(1) pith
(2) conjunctive tissue
(3) cambium
(4) pericycle

Answer: (2) conjunctive tissue

Ques 5. Subsidiary cells are associated with:

(1) xylem vessels
(2) companion cells
(3) guard cells
(4) sieve tubes

Answer: (3) guard cells

Do Check: Diversity In Living World Important Questions

Ques 6. Starch sheath is another name for:

(1) epidermis
(2) endodermis
(3) pericycle
(4) cambium

Answer: (2) endodermis

Ques 7. In racemose inflorescence, flowers are arranged in:

(1) basipetal succession
(2) acropetal succession
(3) centrifugal succession
(4) random succession

Answer: (2) acropetal succession

Ques 8. In cymose inflorescence, the main axis:

(1) grows indefinitely
(2) ends in a flower
(3) bears flowers acropetally
(4) never produces flowers

Answer: (2) ends in a flower

Ques 9. The floral formula of Solanaceae usually represents:

(1) actinomorphic, bisexual, pentamerous flower with superior ovary
(2) zygomorphic, unisexual flower with inferior ovary
(3) actinomorphic, unisexual flower with inferior ovary
(4) zygomorphic, bisexual flower with superior ovary

Answer: (1) actinomorphic, bisexual, pentamerous flower with superior ovary

Ques 10. In Solanaceae, the gynoecium is generally:

(1) monocarpellary, superior
(2) bicarpellary, syncarpous, superior
(3) tricarpellary, apocarpous, inferior
(4) multicarpellary, inferior

Answer: (2) bicarpellary, syncarpous, superior

Ques 11. Which of the following is a characteristic feature of Fabaceae?

(1) Diadelphous stamens
(2) Epipetalous stamens
(3) Syngenesious stamens
(4) Monadelphous stamens only

Answer: (1) Diadelphous stamens

Ques 12. In cereals, the outer covering of endosperm is separated from the embryo by a protein-rich layer called:

(1) scutellum
(2) aleurone layer
(3) coleoptile
(4) coleorhiza

Answer: (2) aleurone layer

Ques 13. Scutellum in a monocot seed represents:

(1) radicle
(2) plumule
(3) cotyledon
(4) endosperm

Answer: (3) cotyledon

Ques 14. Persistent nucellus in a seed is called:

(1) perisperm
(2) pericarp
(3) endosperm
(4) tegmen

Answer: (1) perisperm

Ques 15. A non-albuminous seed is found in:

(1) maize
(2) wheat
(3) groundnut
(4) castor

Answer: (3) groundnut

Ques 16. Which of the following is NOT correct for monocot stem?

(1) Vascular bundles are scattered
(2) Hypodermis is sclerenchymatous
(3) Vascular bundles are open
(4) Ground tissue is not differentiated into cortex and pith

Answer: (3) Vascular bundles are open

Ques 17. In monocot stem, vascular bundles are:

(1) open and arranged in a ring
(2) closed and scattered
(3) open and scattered
(4) closed and arranged in a ring

Answer: (2) closed and scattered

Ques 18. Male frog can be distinguished from female frog by the presence of:

(1) bulging eyes and webbed feet
(2) vocal sacs and copulatory pad
(3) moist skin and tympanum
(4) forelimbs and hindlimbs

Answer: (2) vocal sacs and copulatory pad

Ques 19. The copulatory pad in male frog is present on:

(1) first digit of forelimb
(2) first digit of hindlimb
(3) second digit of forelimb
(4) third digit of hindlimb

Answer: (1) first digit of forelimb

Ques 20. The blood vessel that carries deoxygenated blood from the body to the heart in frog is:

(1) pulmonary artery
(2) vena cava
(3) carotid artery
(4) pulmonary vein

Answer: (2) vena cava

NEET 2026 Biology Questions from Structural Organisation In Animals And Plants

Question 1: The main function of bulliform cells in grasses is:

Answer: To minimize water loss during water stress.

Question 2: Match List I with List II.

List I
A. Conjunctive tissue
B. Casparian strips
C. Subsidiary cells
D. Starch sheath

List II
I. Specialised cells in the vicinity of guard cells
II. Endodermal cells rich in starch
III. Tissue between xylem and phloem
IV. Endodermal cells with suberin deposition

Answer:
A-III, B-IV, C-I, D-II

Question 3: In racemose inflorescence, _________.

Answer: Flowers are borne in an acropetal succession.

Question 4: Which of the following floral formula is the correct floral formula of Solanaceae family?

Answer: The correct floral formula of Solanaceae is represented by option (1). It shows a bisexual, actinomorphic flower with united sepals, united petals, five stamens, and a bicarpellary superior ovary.

Question 5: Male frogs can be distinguished from female frogs due to the presence of:

A. Bulging eyes
B. Vocal sacs
C. Webbed digits in feet
D. Copulatory pad on first digit of fore limbs
E. Olive green-coloured skin with dark irregular spots

Answer: Male frogs are distinguished by vocal sacs and copulatory pad on the first digit of fore limbs.

NEET 2025 Biology Questions from Structural Organisation In Animals And Plants

Question1: What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?

Answer: Vena cava

Question 2: Given below are two statements:

Statement I: In a floral formula, the symbol for zygomorphic nature of flower and G for inferior ovary are represented.
Statement II: In a floral formula, the symbol for actinomorphic nature of flower and G for superior ovary are represented.

Choose the correct answer.

Answer: Statement I is incorrect but Statement II is correct.

Question 3: In the seeds of cereals, the outer covering of endosperm separates the embryo by a protein-rich layer called:

Answer: Aleurone layer

Question 4: Which of the following statement is correct about location of the male frog copulatory pad?

Answer: The copulatory pad is present on the first digit of the fore limb.

Question 5: Match List I with List II.

List I
A. Scutellum
B. Non-albuminous seed
C. Epiblast
D. Perisperm

List II
I. Persistent nucellus
II. Cotyledon of monocot seed
III. Groundnut
IV. Rudimentary cotyledon

Answer: A-II, B-III, C-IV, D-I

Question 6: Find the statement that is NOT correct with regard to the structure of monocot stem.

Answer: “Hypodermis is parenchymatous” is not correct. In monocot stem, the hypodermis is generally sclerenchymatous.