Free NEET Biology Practice

NEET Biology Practice Questions

Chapter-wise MCQs covering the full NCERT Class 11 & 12 syllabus. Start practising for free — sample questions, explanations and previous-year questions included.

Biology chapters (35)

Browse practice questions by chapter. Every chapter includes conceptual MCQs, assertion-reason, statement-based, diagram and matching questions.

Chapter 1
The Living World
Diversity • Taxonomy • Nomenclature
Chapter 2
Biological Classification
Monera • Protista • Fungi • Viruses
Chapter 3
Plant Kingdom
Algae • Bryophytes • Pteridophytes • Gymnosperms
Chapter 4
Animal Kingdom
Porifera to Chordata • Classification basis
Chapter 5
Morphology of Flowering Plants
Root • Stem • Leaf • Flower
Chapter 6
Anatomy of Flowering Plants
Tissues • Meristems • Secondary growth
Chapter 7
Structural Organisation in Animals
Epithelial tissue • Cockroach anatomy
Chapter 8
Cell: The Unit of Life
Cell theory • Organelles • Cell membrane
Chapter 9
Biomolecules
Carbohydrates • Proteins • Enzymes
Chapter 10
Cell Cycle and Cell Division
Mitosis • Meiosis • Checkpoints
Chapter 11
Transport in Plants
Water potential • Transpiration • Phloem transport
Chapter 12
Mineral Nutrition
Essential elements • Nitrogen cycle
Chapter 13
Photosynthesis in Higher Plants
Light reaction • Calvin cycle • C4 pathway
Chapter 14
Respiration in Plants
Glycolysis • Krebs cycle • ETS
Chapter 15
Plant Growth and Development
Phytohormones • Photoperiodism
Chapter 16
Digestion and Absorption
Alimentary canal • Enzymes • Absorption
Chapter 17
Breathing and Exchange of Gases
Respiratory volumes • Transport of gases
Chapter 18
Body Fluids and Circulation
Blood • Heart • ECG
Chapter 19
Excretory Products and their Elimination
Nephron • Urine formation
Chapter 20
Locomotion and Movement
Muscle contraction • Skeletal system
Chapter 21
Neural Control and Coordination
Neuron • Reflex arc • Brain
Chapter 22
Chemical Coordination and Integration
Endocrine glands • Hormones
Chapter 23
Sexual Reproduction in Flowering Plants
Pollination • Double fertilisation
Chapter 24
Human Reproduction
Gametogenesis • Menstrual cycle • Pregnancy
Chapter 25
Reproductive Health
Contraception • ART • STIs
Chapter 26
Principles of Inheritance and Variation
Mendel's laws • Linkage • Sex-linked traits
Chapter 27
Molecular Basis of Inheritance
DNA replication • Transcription • Genetic code
Chapter 28
Evolution
Origin of life • Hardy-Weinberg • Human evolution
Chapter 29
Human Health and Disease
Immunity • AIDS • Cancer
Chapter 30
Microbes in Human Welfare
Fermentation • Sewage treatment • Biocontrol
Chapter 31
Biotechnology: Principles and Processes
Recombinant DNA • PCR • Vectors
Chapter 32
Biotechnology and its Applications
GM crops • Gene therapy • Insulin
Chapter 33
Organisms and Populations
Adaptations • Population interactions
Chapter 34
Ecosystem
Energy flow • Food chain • Biogeochemical cycles
Chapter 35
Biodiversity and Conservation
Hotspots • Extinction • Ex-situ conservation

Sample NEET Biology Questions

A quick taste of the question bank. Sign up free to attempt thousands more with instant explanations, bookmarking and performance tracking.

Question 1

Which of the following is the correct sequence of stages of mitosis?

  1. 1.Prophase → Metaphase → Anaphase → Telophase
  2. 2.Metaphase → Prophase → Telophase → Anaphase
  3. 3.Prophase → Anaphase → Metaphase → Telophase
  4. 4.Telophase → Anaphase → Metaphase → Prophase
Explanation: Mitosis proceeds through prophase (chromosome condensation), metaphase (alignment at equator), anaphase (sister chromatid separation) and telophase (nuclear envelope reformation).
Question 2

In C4 plants, the primary CO₂ acceptor is:

  1. 1.RuBP
  2. 2.PEP
  3. 3.OAA
  4. 4.PGA
Explanation: In C4 plants CO₂ is first fixed in mesophyll cells by PEP carboxylase using phosphoenolpyruvate (PEP) as the primary acceptor, forming OAA.
Question 3

The functional unit of the kidney is:

  1. 1.Neuron
  2. 2.Nephron
  3. 3.Alveolus
  4. 4.Hepatocyte
Explanation: The nephron is the structural and functional unit of the kidney; each human kidney has roughly one million nephrons that filter blood and form urine.

Ready for the full NEET Biology question bank?

Thousands of chapter-wise MCQs, previous-year questions (PYQs) with year-wise filters, bookmarks, incorrect-question revision and detailed analytics — from just ₹299/year.