NEET 2028 Biology is worth 90 of the 180 questions — half the paper — and it rewards one habit above all others: testing each topic as soon as you finish it, then revisiting it before it fades. This guide is a topic-wise test plan from Class 11, unit by unit, built on the current NMC NEET-UG syllabus and the NCERT chapters behind it.
It is written for Class 11 students sitting NEET 2028, but NEET 2027 Class 12 students and repeaters can use the same unit tables as a revision and testing checklist. And because NEET is very likely moving to a computer-based test, every test in this plan is meant to be taken on a screen.
The rule of this plan: read the NCERT topic, practise it the same week, take a short topic-wise test as soon as it is done, log every mistake, and re-test it after two weeks and again after six. Biology is a memory subject; the re-tests are where marks are kept.
NEET Biology syllabus 2028: the units you are tested on
The National Medical Commission (NMC) sets the NEET syllabus. Its latest notification, dated 22 December 2025, lists ten Biology units. A separate NEET 2028 syllabus has not been released, so plan on this one and check the bulletin when it arrives.
| NMC unit | NCERT chapters | Class |
|---|---|---|
| 1. Diversity in Living World | The Living World; Biological Classification; Plant Kingdom; Animal Kingdom | 11 |
| 2. Structural Organisation in Animals and Plants | Morphology of Flowering Plants; Anatomy of Flowering Plants; Structural Organisation in Animals | 11 |
| 3. Cell Structure and Function | Cell: The Unit of Life; Biomolecules; Cell Cycle and Cell Division | 11 |
| 4. Plant Physiology | Photosynthesis in Higher Plants; Respiration in Plants; Plant Growth and Development | 11 |
| 5. Human Physiology | Breathing and Exchange of Gases; Body Fluids and Circulation; Excretory Products; Locomotion and Movement; Neural Control; Chemical Coordination | 11 |
| 6. Reproduction | Sexual Reproduction in Flowering Plants; Human Reproduction; Reproductive Health | 12 |
| 7. Genetics and Evolution | Principles of Inheritance and Variation; Molecular Basis of Inheritance; Evolution | 12 |
| 8. Biology and Human Welfare | Human Health and Disease; Microbes in Human Welfare | 12 |
| 9. Biotechnology and Its Applications | Biotechnology: Principles and Processes; Biotechnology and its Applications | 12 |
| 10. Ecology and Environment | Organisms and Populations; Ecosystem; Biodiversity and Conservation | 12 |
Five units come from Class 11 and five from Class 12. That is why a NEET 2028 aspirant who tests Class 11 Biology properly this year is already working on half of the Biology paper.
Topics not in the current NMC list
Older books and coaching modules still include chapters the current NMC syllabus does not list. Compared with earlier syllabi, these are absent from the December 2025 notification:
- Transport in Plants and Mineral Nutrition (Class 11)
- Digestion and Absorption (Class 11)
- Reproduction in Organisms (Class 12)
- Strategies for Enhancement in Food Production (Class 12)
- Environmental Issues (Class 12)
Smaller items have gone too — for example, the Plant Growth unit no longer lists photoperiodism, vernalisation or seed dormancy. Meanwhile some items students skip are clearly listed: the five flowering-plant families (Malvaceae, Cruciferae, Leguminosae, Compositae, Gramineae), a brief account of the frog, and named disorders under Human Physiology. When in doubt, the official syllabus (PDF) settles it.
Botany vs Zoology: how the 90 questions are usually grouped
The paper has 45 Botany and 45 Zoology questions. NMC does not publish which chapters belong to which half, so the grouping below is the common convention, useful for balancing your week.
| Usually Botany | Usually Zoology |
|---|---|
| The Living World, Biological Classification, Plant Kingdom, Morphology and Anatomy of Flowering Plants, Cell, Cell Cycle, Plant Physiology, Sexual Reproduction in Flowering Plants, Inheritance and Molecular Basis, Microbes, Ecology | Animal Kingdom, Structural Organisation in Animals, Biomolecules, Human Physiology, Human Reproduction, Reproductive Health, Evolution, Human Health and Disease, Biotechnology |
Past papers spread Biology marks fairly evenly across units, so coverage beats chasing a few “important” chapters. Our high-weightage chapters guide has the measured breakdown from previous papers.
How many topic-wise tests per chapter?
There is no official number. Here is a practical rule of thumb we suggest, based on how much separate material each chapter holds:
- Short chapters (The Living World, Microbes in Human Welfare): 1–2 topic-wise tests.
- Medium chapters (Cell Cycle, Respiration in Plants, Reproductive Health): 2–3 tests.
- Long or dense chapters (Animal Kingdom, Plant Kingdom, Molecular Basis of Inheritance, Human Reproduction): 3–5 tests, one per major topic.
- Plus re-tests: every topic again after about two weeks and after about six weeks, mixed with other chapters.
Keep each test short — 15 to 25 questions — and timed at roughly a minute per question, the same pace as the real paper.
Class 11, Term 1: the first half of the year
Most schools start Class 11 Biology with diversity and structure, then cells. School order varies, so match the table to your timetable. If you are in Class 11 now and these chapters are already done, start by taking their topic-wise tests — that tells you what to revise.
| Chapter | Suggested topic-wise tests | Where students lose marks |
|---|---|---|
| The Living World | 1–2 | Taxonomic hierarchy order; nomenclature rules |
| Biological Classification | 2–3 | Kingdom features; fungi groups; viruses and viroids |
| Plant Kingdom | 3–4 | Group features and examples; life-cycle details |
| Animal Kingdom | 4–5 | Phylum and class features; examples |
| Morphology of Flowering Plants | 3–4 | Floral formulae; the five families; modifications |
| Anatomy of Flowering Plants | 2–3 | Tissue types; monocot vs dicot sections |
| Structural Organisation in Animals | 2 | Animal tissues; frog (brief account) |
| Cell: The Unit of Life | 3 | Organelle structure and function |
Class 11, Term 2: biomolecules, physiology and the body
| Chapter | Suggested topic-wise tests | Where students lose marks |
|---|---|---|
| Biomolecules | 2–3 | Enzyme classes; structures of proteins and nucleic acids |
| Cell Cycle and Cell Division | 2 | Stage sequence and events of meiosis |
| Photosynthesis in Higher Plants | 3 | Light reactions; C3 vs C4; photorespiration |
| Respiration in Plants | 2 | Glycolysis and TCA steps; ATP accounting; RQ |
| Plant Growth and Development | 2 | Growth regulator functions |
| Breathing and Exchange of Gases | 2 | Respiratory volumes; disorders |
| Body Fluids and Circulation | 3 | Cardiac cycle; ECG; blood groups |
| Excretory Products | 2–3 | Nephron function; hormonal regulation |
| Locomotion and Movement | 2 | Muscle contraction; skeleton; joints |
| Neural Control and Coordination | 2 | Impulse conduction; brain parts |
| Chemical Coordination | 2–3 | Hormone sources and effects; disorders |
April to June 2027: before Class 12 starts, run one full round of mixed Class 11 Biology revision, then re-take every topic-wise test where you scored poorly. This is the only quiet stretch you get to look at all of Class 11 at once.
See how negative marking affects your score — NEETnify’s mock analysis flags every −1 you can avoid.
Try it freeClass 12, Term 1: reproduction and genetics
| Chapter | Suggested topic-wise tests | Where students lose marks |
|---|---|---|
| Sexual Reproduction in Flowering Plants | 3 | Embryo sac; double fertilisation; special modes |
| Human Reproduction | 3–4 | Gametogenesis; menstrual cycle hormones |
| Reproductive Health | 2 | Contraceptive methods; ART terms |
| Principles of Inheritance and Variation | 3–4 | Crosses and ratios; sex determination; disorders |
| Molecular Basis of Inheritance | 4–5 | Replication, transcription, translation; lac operon |
| Evolution | 2–3 | Evidence; Hardy-Weinberg; human evolution |
Class 12, Term 2: human welfare, biotechnology and ecology
| Chapter | Suggested topic-wise tests | Where students lose marks |
|---|---|---|
| Human Health and Disease | 2–3 | Pathogens and diseases; immunity; drugs |
| Microbes in Human Welfare | 1–2 | Microbe–product pairs |
| Biotechnology: Principles and Processes | 3 | Enzymes and vectors; steps of rDNA technology |
| Biotechnology and its Applications | 2 | Bt crops; insulin; gene therapy |
| Organisms and Populations | 2 | Population interactions; growth models |
| Ecosystem | 2 | Productivity; energy flow; pyramids |
| Biodiversity and Conservation | 2 | Hotspots; in situ vs ex situ conservation |
All through Class 12, keep one fixed weekly slot for mixed Class 11 Biology re-tests. It is the single best protection against the forgetting that catches most two-year plans.
How to read NCERT for NEET Biology
- Read line by line, twice. First for understanding, second for facts — numbers, names, examples and exceptions.
- Read the tables, captions and boxed text. Questions are often built on them.
- Turn statements into questions. After each section, write three “which is incorrect” style statements; this mirrors how NEET tests Biology.
- Stick to the current syllabus. Skip chapters not in the NMC list, however familiar they look in older books.
More on this in is NCERT enough for NEET.
Diagrams to master
Diagram-based questions test whether you can identify parts and link structure to function. Draw these from memory until they are quick and correct:
- Plant and animal cell; mitochondrion and chloroplast
- Stages of mitosis and meiosis
- Monocot and dicot root, stem and leaf sections
- Floral diagrams for the five listed families
- Human heart, nephron, neuron and sarcomere
- Male and female reproductive systems; embryo sac; pollen grain
- DNA double helix, replication fork and the lac operon
- Steps of recombinant DNA technology
- Ecological pyramids
On a screen you cannot draw on the question, so practise identifying labelled parts from the image alone, and sketch on your rough sheet only when you need to.
The error log and revision loops
After every topic-wise test, write each wrong or guessed answer in an error log with three columns: the chapter, what you got wrong, and the NCERT line that has the right answer.
| Loop | When | What you do |
|---|---|---|
| Same day | Right after the test | Log every mistake; re-read the NCERT lines |
| Weekly | One fixed slot | Read the week's error log aloud; re-solve the questions |
| Two weeks | After each chapter | Re-test the topics in a mixed test |
| Six weeks | Rolling | Re-test again with other units; drop topics you now get right |
A topic leaves the log only when you get it right twice in a row, weeks apart.
How this plan fits computer-based practice
NEET is very likely moving to a computer-based test: NTA has told the Supreme Court it plans the move and has started identifying centres, though the final format is not yet officially notified. Biology is where screen reading matters most, because its questions are long — statements, assertion-reason and match-the-following.
- Take every topic-wise test on a laptop or desktop, not on paper.
- Note qualifiers like “NOT” and “incorrect” on your rough sheet.
- Use mark-for-review for statement questions you are unsure of.
- From Class 12, add full-length CBT-style mocks, then live mocks. See the NEET CBT preparation guide.
If you are sitting NEET 2027
Use the four unit tables as a checklist. Take one topic-wise test per chapter to find gaps quickly, fix the weakest chapters first, then move to full revisions and full CBT-style mocks. Our NEET 2027 revision plan helps you sequence the final months. If you are weighing a second attempt, read dropper or fresh attempt? NEET 2027 vs 2028.
Common Biology preparation mistakes
- Reading NCERT once and assuming it is learned — Biology needs re-tests.
- Skipping “rote” chapters such as Animal Kingdom and Plant Kingdom.
- Studying chapters that are no longer in the NMC syllabus.
- Ignoring diagrams, tables and examples.
- Never revisiting Class 11 Biology during Class 12.
- Taking tests without logging and reviewing mistakes.
One plan for NEET 2027 and 2028
NEETnify Plus is ₹499 with coupon NEET2028 (MRP ₹3,999). Plan valid till 30 June 2028 — so one purchase covers a NEET 2027 attempt and a NEET 2028 attempt. Plus covers every chapter of Physics, Chemistry and Biology, updated for the latest NEET syllabus: chapter practice, topic-wise tests, full revisions, full-length CBT-style mocks and weekly live mocks that continue all through the plan, along with PYQs and analytics. See NEETnify Plus and apply the coupon.
Key takeaways
- Biology is 90 of 180 NEET questions: ten NMC units, five from each class.
- Plan on the NMC syllabus of 22 December 2025 and skip chapters it no longer lists.
- Take a topic-wise test as soon as each topic is done, then re-test after two and six weeks.
- Keep an error log tied to NCERT lines, and master the key diagrams.
- Take every test on a screen — a computer-based NEET is very likely.
Related reading
- NEET 2028 preparation roadmap
- NEET syllabus, subject-wise and NCERT-mapped
- NEET important and high-weightage chapters
- NEET preparation from Class 11
- How to prepare for NEET CBT mode
Sources
- NMC NEET (UG) syllabus notification (PDF) — the ten Biology units, issued by NMC's UGMEB on 22 December 2025.
- Medical Dialogues — summary of the Biology chapters and topics removed in the 2024 syllabus revision.
- Careers360 — the current pattern: 180 compulsory questions including 90 in Biology.
- Deccan Herald — NTA tells the Supreme Court NEET-UG is set to move to CBT from 2027 (May 2026).
- Medical Dialogues — NTA asks AICTE to identify CBT exam centres (September 2026).
- Careers360 — the Centre tells the Supreme Court the shift is under active consideration (August 2026).
One plan for NEET 2027 and 2028
Plus covers every chapter step by step — chapter practice, topic-wise tests, full revisions and full CBT-style mocks, all through your plan.
See Plus and the current offer →Frequently asked questions
How many units are in the NEET Biology syllabus?
Ten, in the NMC syllabus notified on 22 December 2025: Diversity in Living World, Structural Organisation in Animals and Plants, Cell Structure and Function, Plant Physiology, Human Physiology, Reproduction, Genetics and Evolution, Biology and Human Welfare, Biotechnology and Its Applications, and Ecology and Environment. Five come from Class 11 and five from Class 12.
Which Biology chapters are not in the current NEET syllabus?
Compared with older syllabi, the current NMC list does not include Transport in Plants, Mineral Nutrition, Digestion and Absorption, Reproduction in Organisms, Strategies for Enhancement in Food Production and Environmental Issues, along with some smaller topics. Check the official NMC syllabus before studying from older material.
How many Biology questions are in NEET?
Ninety of the 180 questions — 45 in Botany and 45 in Zoology — worth 360 of the 720 marks under the current pattern.
How many topic-wise tests should I take per Biology chapter?
There is no official number. A practical rule is one or two tests for short chapters, two or three for medium ones and three to five for long chapters, then a re-test of each topic after about two weeks and again after about six weeks.
Is NCERT enough for NEET Biology?
NCERT is the foundation, and most Biology questions are built on it. Read it line by line, including tables, captions and diagrams, and pair it with topic-wise tests and previous-year questions.
When should a Class 11 student start Biology topic-wise tests?
As soon as the first topic is finished. Short, timed tests right after each topic catch gaps early, and re-tests a few weeks later keep the chapter from fading.
Should I take Biology tests on a computer?
Yes. A computer-based NEET is very likely, and Biology’s long statement-based questions are where screen reading matters most. Take topic-wise tests on a laptop or desktop and keep a little paper practice until the format is officially notified.
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