NEET Biology Syllabus 2027: 10 Units, Botany–Zoology Split & Weightage
Table of Contents
- What Is the NEET Biology Syllabus 2027?
- NEET Biology Syllabus 2027 Unit-Wise: Class 11 and Class 12
- NEET Biology Syllabus: Which Units Belong to Botany and Which to Zoology?
- Is the Cockroach in the NEET Syllabus 2027? Is the Frog? What Else Was Deleted?
- NEET Biology Chapter-Wise Weightage: Which Chapters Matter Most?
- How to Study Biology for NEET 2027
- NEET Biology Syllabus 2027 PDF: Where to Download It
eSaral › NEET Syllabus › NEET Biology Syllabus 2027: 10 Units, Botany–Zoology Split & Weightage
What Is the NEET Biology Syllabus 2027?
It is a 10-unit list from the National Medical Commission (NMC), split evenly between Class 11 and Class 12. Unit numbers (1–10) follow the official order and match the biology list in our complete NEET syllabus 2027 guide.
| Detail | NEET Biology 2027 |
|---|---|
| Official units | 10 (Units 1–5 from Class 11, Units 6–10 from Class 12) |
| Questions and marks | 90 compulsory questions, 360 marks (50% of 720) |
| Split | Botany 45 questions (180 marks) and Zoology 45 questions (180 marks) |
| Marking | +4 for a correct answer, −1 for a wrong answer |
| Syllabus prescribed by | National Medical Commission (NMC) |
| Exam conducted by | National Testing Agency (NTA) |
Has anything changed for 2027? Not officially. NMC left the syllabus unchanged for 2026, and new NCERT textbooks do not, by themselves, change what NEET tests. The live status is on the main NEET syllabus 2027 page, and the paper layout is in the NEET exam pattern guide.
Other subjects: NEET Physics syllabus and NEET Chemistry syllabus.
NEET Biology Syllabus 2027 Unit-Wise: Class 11 and Class 12
Class 11 covers diversity, structure, the cell, plant physiology and human physiology; Class 12 covers reproduction, genetics, welfare, biotechnology and ecology. The tables outline each unit's scope and the usual NCERT chapters. Full topic lists sit on the Botany and Zoology pages.
Class 11 Biology Syllabus for NEET: Units 1 to 5
| Unit | NMC unit | What it covers | Usual NCERT chapters |
|---|---|---|---|
| 1 | Diversity in the Living World | Classification, five kingdoms, plant groups and animal phyla | The Living World; Biological Classification; Plant Kingdom; Animal Kingdom |
| 2 | Structural Organisation in Animals and Plants | Flowering plant morphology and anatomy, plant families, animal tissues, the frog | Morphology of Flowering Plants; Anatomy of Flowering Plants; Structural Organisation in Animals |
| 3 | Cell Structure and Function | Cell, organelles, biomolecules, enzymes, cell cycle | Cell: The Unit of Life; Biomolecules; Cell Cycle and Cell Division |
| 4 | Plant Physiology | Photosynthesis, respiration, plant growth and development | Photosynthesis in Higher Plants; Respiration in Plants; Plant Growth and Development |
| 5 | Human Physiology | Breathing, circulation, excretion, locomotion, neural and chemical coordination | Breathing and Exchange of Gases; Body Fluids and Circulation; Excretory Products and their Elimination; Locomotion and Movement; Neural Control and Coordination; Chemical Coordination and Integration |
Class 12 Biology Syllabus for NEET: Units 6 to 10
| Unit | NMC unit | What it covers | Usual NCERT chapters |
|---|---|---|---|
| 6 | Reproduction | Flowering plant reproduction, human reproduction, reproductive health | Sexual Reproduction in Flowering Plants; Human Reproduction; Reproductive Health |
| 7 | Genetics and Evolution | Inheritance, molecular basis of inheritance, evolution | Principles of Inheritance and Variation; Molecular Basis of Inheritance; Evolution |
| 8 | Biology and Human Welfare | Health and disease, immunology, microbes in human welfare | Human Health and Disease; Microbes in Human Welfare |
| 9 | Biotechnology and Its Applications | Recombinant DNA technology, applications in health and agriculture, biosafety | Biotechnology: Principles and Processes; Biotechnology and its Applications |
| 10 | Ecology and Environment | Population interactions, ecosystem, biodiversity and conservation | Organisms and Populations; Ecosystem; Biodiversity and Conservation |
How many chapters is that? The 10 official units map onto 32 NCERT chapters in the standard arrangement. Other sources count between 32 and 38, so treat the 10 units as the official count. Chapter titles differ slightly across NCERT editions, so follow the unit text. Keep the NCERT books, NCERT Solutions for Class 11 and Class 12 open as you work through the list.
NEET Biology Syllabus: Which Units Belong to Botany and Which to Zoology?
Botany (45 questions) leans on plants and Zoology (45 questions) on animals and humans, but four units are shared. Study every unit, because how a shared topic is assigned can change from paper to paper.
| Unit | Botany side | Zoology side |
|---|---|---|
| 1. Diversity in the Living World | Monera, Protista, Fungi, Plant Kingdom | Animal Kingdom |
| 2. Structural Organisation | Flowering plant morphology and anatomy, plant families | Animal tissues, the frog |
| 3. Cell Structure and Function | Shared: can appear on either side | |
| 4. Plant Physiology | All of it | – |
| 5. Human Physiology | – | All of it |
| 6. Reproduction | Sexual reproduction in flowering plants | Human reproduction, reproductive health |
| 7. Genetics and Evolution | Shared: inheritance and molecular basis; human genetics and evolution lean Zoology | |
| 8. Biology and Human Welfare | Microbes in human welfare | Health and disease, immunology, cancer, HIV |
| 9. Biotechnology | Shared | |
| 10. Ecology and Environment | Shared | |
Next step: open the NEET Botany syllabus 2027 for plant-side topics and the NEET Zoology syllabus 2027 for animal and human-side topics.
Is the Cockroach in the NEET Syllabus 2027? Is the Frog? What Else Was Deleted?
The cockroach is out and the frog is in. The insect (cockroach) account was removed from Unit 2, and the frog replaced it: study its morphology, anatomy and the functions of its digestive, circulatory, respiratory, nervous and reproductive systems as a brief account. The official line reads “insect (Frog)”, but the frog is an amphibian. Skip the cockroach sections of your textbook and notes.
No biology unit was dropped, but topics inside six units were removed. Skip these unless NMC reinstates them, even though several still sit in your school NCERT.
| Unit | Removed from the NEET syllabus | Still in |
|---|---|---|
| 1. Diversity | Three domains of life; taxonomic aids (museums, zoos, herbaria, botanical gardens); classification of angiosperms up to class level | Five-kingdom classification; algae, bryophytes, pteridophytes, gymnosperms |
| 2. Structural Organisation | Cockroach | Frog; anatomy of flowering plants |
| 4. Plant Physiology | Transport in plants; mineral nutrition, nitrogen cycle and nitrogen fixation, hydroponics; seed dormancy, vernalisation, photoperiodism | Photosynthesis, respiration, growth and development |
| 5. Human Physiology | Digestion and absorption; reflex action, sense organs, structure of eye and ear | Breathing, circulation, excretion, locomotion, neuron and nerve impulse, chemical coordination |
| 6. Reproduction | Reproduction in organisms (asexual reproduction, vegetative propagation) | Flowering plant reproduction, human reproduction, reproductive health |
| 8. Human Welfare | Plant breeding, tissue culture, single cell protein, biofortification, apiculture, animal husbandry | Health and disease, immunology, microbes in human welfare |
| 10. Ecology | Habitat and niche, ecological succession, nutrient cycling, ecological services, adaptations; environmental issues (pollution, solid waste, ozone depletion, deforestation, case studies) | Population interactions, ecosystem, biodiversity and conservation |
Added or newly emphasised
- Five plant families: Malvaceae, Cruciferae, Leguminosae, Compositae, Gramineae
- The frog (in place of the cockroach)
- Classification and nomenclature of enzymes
- Protein biosynthesis
- Dengue and chikungunya
NEET Biology Chapter-Wise Weightage: Which Chapters Matter Most?
Cell led NEET 2026 Biology in both major analyses, with 7 questions on 3 May and 8 in the Re-NEET. Use weightage to order your revision, never to skip a chapter. This table covers the whole biology paper; subject-wise counts are on the Botany and Zoology pages.
| Chapter | 3 May 2026 paper (eSaral analysis) | Re-NEET, 21 June 2026 (BrilliantPala analysis) |
|---|---|---|
| Cell: The Unit of Life | 7 | 8 |
| Evolution | 6 | 6 |
| Human Reproduction | Not in the top list | 6 |
| Biological Classification | 5 | 5 |
| Photosynthesis in Higher Plants | 4 to 5 | 5 |
| Locomotion and Movement | 2 to 5 | 5 |
| Morphology of Flowering Plants; Principles of Inheritance; Biotechnology: Principles and Processes; Organisms and Populations | Not in the top list | 4 each |
Cell, Evolution, Biological Classification and Photosynthesis sit near the top in both papers, so make them strong first. Anatomy of Flowering Plants had no questions in the Re-NEET analysis but is still in the syllabus. Counts differ slightly between analyses because papers were set in several codes, and the pattern reflects 2026 only, not a fixed rule.
On Class 11 versus Class 12, about 57.8% of Biology questions came from the Class 11 book in past trends, though the ratio changes each year. Across all three subjects, the Re-NEET analysis found 51% from Class 11 and 47% from Class 12. Read our NEET 2026 paper analysis, then practise with chapter-wise NEET PYQs with solutions and NEET important questions.
How to Study Biology for NEET 2027
Read NCERT line by line, learn every diagram and table, and practise chapter-wise previous year questions. eSaral’s analysis found Biology the easiest section in 2026, with many students finishing it in 35 to 45 minutes, so accuracy here protects your rank.
| Biology block | Units | How to study |
|---|---|---|
| Diversity and structure | 1–2 | Make comparison tables for kingdoms, plant groups and animal phyla; learn the five plant families and the frog. |
| Cell and biomolecules | 3 | The top-scoring chapter. Redraw organelle diagrams and cell cycle stages; learn enzyme classes. |
| Plant physiology | 4 | Learn pathways as flowcharts: light reactions, C3 and C4, glycolysis, TCA cycle, ETS. |
| Human physiology | 5 | Diagrams matter most. Learn each system with its disorders and hormones. |
| Reproduction | 6 | Practise stage-wise diagrams for gametogenesis, fertilisation and early embryo development. |
| Genetics and evolution | 7 | Solve crosses and pedigrees daily; learn Hardy–Weinberg and molecular steps in order. |
| Welfare, biotechnology, ecology | 8–10 | Learn NCERT examples and tables, and biotechnology techniques step by step. |
Fit this into the 6-month NEET 2027 syllabus plan. Revise with NEET revision notes, revision videos and mind maps and NEET previous year papers. For expert-led daily structure, see eSaral NEET courses and the NEET test series.
NEET Biology Syllabus 2027 PDF: Where to Download It
Biology is the last subject in the single official NEET (UG) syllabus PDF issued by NMC and hosted by NTA. There is no separate official biology-only file.
- Official Syllabus for NEET (UG)-2026 (PDF): Biology follows Physics and Chemistry.
- Check nmc.org.in for any new NEET UG notice.
- Cross-check against neet.nta.nic.in when the NEET 2027 bulletin is released.
For the status of the 2027 syllabus and the all-subject download, see the NEET syllabus 2027 page.
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