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By Swati Singh
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Updated on 24 Oct 2025, 16:43 IST
Preparing for CBSE Class 11 Biology exams? Mastering multiple-choice questions (MCQs) is a proven strategy to excel in board exams and competitive tests like NEET.
This comprehensive guide provides chapter-wise MCQs aligned with the latest CBSE Class 11 Biology syllabus 2025, helping students grasp concepts, test their knowledge, and strengthen their preparation. These questions are carefully curated based on NCERT textbooks, past exam patterns, and expert inputs.
Dive into chapter-specific MCQs to practice and enhance your understanding of key topics. Each section includes questions tailored to test your fundamental and application-based knowledge, making it easier to identify strengths and areas for improvement. Use these NCERT Class 11 Biology MCQs as a foundation for success.
| S.no | Chapter Name |
| 1 | The Living World |
| 2 | Biological Classification |
| 3 | Plant Kingdom |
| 4 | Animal Kingdom |
| 5 | Morphology of Flowering Plants |
| 6 | Anatomy of Flowering Plants |
| 7 | Structural Organisation in Animals |
| 8 | Cell: The Unit of Life |
| 9 | Biomolecules |
| 10 | Cell Cycle and Cell Division |
| 11 | Transport in Plants |
| 12 | Mineral Nutrition |
| 13 | Photosynthesis in Higher Plants |
| 14 | Respiration in Plants |
| 15 | Plant Growth and Development |
| 16 | Digestion and Absorption |
| 17 | Breathing and Exchange of Gases |
| 18 | Body Fluids and Circulation |
| 19 | Excretory Products and Their Elimination |
| 20 | Locomotion and Movement |
| 21 | Neural Control and Coordination |
| 22 | Chemical Coordination and Integration |
Unit 1: The Living World
Q. The term "taxonomy" was first coined by:
Linnaeus
De Candolle
Aristotle
Darwin
Answer: De Candolle
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Q. The universal source of classification is:
International Code of Botanical Nomenclature (ICBN)
Binomial nomenclature
Zoological Nomenclature
Phylogeny
Answer: International Code of Botanical Nomenclature (ICBN)
Q. Which of the following is not a taxonomic category?
Genus
Order
Class
Variety
Answer: Variety
Unit 2: Biological Classification
Q. The five-kingdom classification was given by:
Linnaeus
Whittaker
Aristotle
Haeckel
Answer: Whittaker
Q .Bacteria reproduce mainly by:
Fragmentation
Binary fission
Budding
Conjugation
Answer: Binary fission
Q. Viroids differ from viruses in having:
RNA molecules without protein coat
DNA with protein coat
Only protein coat
Both DNA & RNA
Answer: RNA molecules without protein coat
Unit 3: Plant Kingdom
Q. Bryophytes are called amphibians of the plant kingdom because:
Found in water
Require water for fertilization
Both gametophyte and sporophyte are independent
None of these
Answer: Require water for fertilization
Q. Double fertilization is unique to:
Gymnosperms
Angiosperms
Bryophytes
Pteridophytes
Answer: Angiosperms
Q. The dominant phase in pteridophytes is:
Gametophyte
Sporophyte
Both
None
Answer: Sporophyte
Unit 4: Animal Kingdom
Q. The body cavity in Aschelminthes is:
True coelom
Pseudocoelom
Acoelomate
Haemocoel
Answer: Pseudocoelom
Q. Which is diploblastic?
Cnidaria
Annelida
Mollusca
Arthropoda
Answer: Cnidaria
Q. Notochord is present in:
Non-chordates
All chordates at some stage
Vertebrates only
Invertebrates only
Answer: All chordates at some stage
Unit 5: Morphology of Flowering Plants
Q. Fibrous root system is seen in:
Dicot plants
Monocot plants
Both
Algae
Answer: Monocot plants
Q. Phyllotaxy in sunflower is:
Alternate
Opposite
Whorled
Spiral
Answer: Alternate
Q. The seed coat develops from:
Ovule
Integuments
Nucellus
Endosperm
Answer: Integuments
Unit 6: Anatomy of Flowering Plants
Q. Secondary growth in dicot stem is due to:
Apical meristem
Intercalary meristem
Vascular cambium
Cork cambium
Answer: Vascular cambium
Q. Xylem is responsible for transport of:
Food
Water & minerals
Hormones
Vitamins
Answer: Water & minerals
Q. Guard cells are part of:
Epidermis
Xylem
Phloem
Cambium
Answer: Epidermis
Unit 7: Structural Organisation in Animals
Q. The functional unit of kidney is:
Nephron
Glomerulus
Bowman’s capsule
Neuron
Answer: Nephron
Q. Simple squamous epithelium is also known as:
Endothelium
Transitional epithelium
Columnar epithelium
Cuboidal epithelium
Answer: Endothelium
Q. The connective tissue with fluid matrix is:
Cartilage
Bone
Blood
Tendon
Answer: Blood
Unit 8: Cell Structure and Function
Q. Mitochondria are known as:
Kitchen of cell
Powerhouse of cell
Suicide bag
Brain of cell
Answer: Powerhouse of cell
Q. The 70S ribosomes are present in:
Mitochondria & prokaryotes
ER
Nucleus
Lysosomes
Answer: Mitochondria & prokaryotes
Q. Cell wall in fungi is made of:
Cellulose
Chitin
Pectin
Hemicellulose
Answer: Chitin
Unit 9: Biomolecules
Q. The building blocks of proteins are:
Monosaccharides
Amino acids
Fatty acids
Nucleotides
Answer: Amino acids
Q. The enzyme which catalyzes breakdown of starch is:
Lipase
Amylase
Maltase
Protease
Answer: Amylase
Q. DNA is a:
Double-stranded helix
Single-stranded molecule
Triple-stranded helix
Protein coat
Answer: Double-stranded helix
Unit 10: Cell Cycle and Cell Division
Q.G1 phase is concerned with:
DNA replication
RNA & protein synthesis
Chromosome segregation
Cytokinesis
Answer: RNA & protein synthesis
Q. Synapsis occurs during:
Prophase I
Metaphase I
Anaphase II
Telophase I
Answer: Prophase I
Q. Crossing over occurs at:
Chiasmata
Centromere
Chromatid
Spindle fibre
Answer: Chiasmata
Unit 11: Transport in Plants
Q. Transpiration occurs through:
Cuticle
Stomata
Lenticels
All of these
Answer: All of these
Q. The main pathway of water movement in roots is:
Symplast
Apoplast
Both
None
Answer: Apoplast
Q. Osmosis is the movement of:
Solvent from high conc. to low conc.
Solute from high conc. to low conc.
Solvent from low to high conc.
None
Answer: Solvent from high conc. to low conc.
Unit 12: Mineral Nutrition
Q. Nitrogen is a component of:
Proteins & nucleic acids
Fats
Carbohydrates
Water
Answer: Proteins & nucleic acids
Q. Chlorosis is due to deficiency of:
Mg, Fe, N, K
S, Mn
Ca, B
All
Answer: Mg, Fe, N, K
Q. Leghemoglobin is present in:
Nodules of legumes
Roots of monocots
Phloem sap
Xylem vessels
Answer: Nodules of legumes
Unit 13: Photosynthesis
Q. The first stable product of C3 cycle is:
PGA
OAA
PEP
RuBP
Answer: PGA
Q. Hill reaction occurs in:
Stroma
Grana
Cytoplasm
Mitochondria
Answer: Grana
Q. Photorespiration occurs in:
C3 plants
C4 plants
CAM plants
All
Answer: C3 plants
Unit 14: Respiration in Plants
Q. The end product of glycolysis is:
Pyruvate
Glucose
ATP
NADH
Answer: Pyruvate
Q .Number of ATP produced in aerobic respiration from 1 glucose is:
2
8
36
38
Answer: 38
Unit 15: Plant Growth & Development
Q. Which plant hormone is known as stress hormone?
Auxin
Cytokinin
Abscisic acid
Gibberellin
Answer: Abscisic acid
Q. The hormone responsible for cell elongation is:
Auxin
Ethylene
Cytokinin
ABA
Answer: Auxin
Q. Vernalisation is related to:
Flowering
Germination
Photoperiodism
Dormancy
Answer: Flowering
Unit 16: Digestion and Absorption
Q. The enzyme pepsin acts in:
Mouth
Stomach
Small intestine
Pancreas
Answer: Stomach
Q. Bile is secreted by:
Liver
Gall bladder
Pancreas
Stomach
Answer: Liver
Unit 17: Breathing and Exchange of Gases
Q. The functional unit of lungs is:
Bronchiole
Alveolus
Trachea
Pleura
Answer: Alveolus
Q. Oxygen is mainly transported in blood as:
Oxyhaemoglobin
Dissolved gas
Carbaminohaemoglobin
Plasma solution
Answer: Oxyhaemoglobin
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You can find well-structured and accurate Class 11 Biology MCQs with answers on Infinity Learn, designed for exam preparation and competitive test readiness.
The MCQs cover topics like Cell Division, Photosynthesis, Respiration, and Chemical Coordination, providing a solid foundation for NEET preparation.
Chapter-wise Biology MCQs align with the NCERT syllabus, helping students strengthen concepts, improve accuracy, and prepare effectively for NEET and CBSE exams.
Yes, the Class 11 Biology MCQs are curated as per the latest CBSE syllabus, covering all topics like Plant Kingdom, Biomolecules, and Neural Coordination comprehensively.