NEET Biology · Previous Year Questions
NEET Biology PYQ Chapter-Wise (2005–2025) with NCERT References
Every NEET Biology question from AIPMT 2005 to NEET 2025 — chapter-wise across Botany and Zoology, with the exact NCERT Class 11/12 line each question is derived from, plus step-by-step solutions. Biology carries 360 of the 720 NEET marks, and disciplined chapter-wise PYQ practice is the single highest-ROI investment an NEET aspirant can make.
Roughly 30–40% of every NEET paper is either a direct repeat or a close variant of a previous year Biology question. Consistent PYQ practice is not optional — it is the foundation of a 330+ Biology score.
Biology Chapters with PYQ Coverage & Weightage
Weightage is the 10-year average share of Biology marks. Genetics, Human Reproduction, Physiology (all three systems) and Photosynthesis + Cell are consistently the top-weightage areas — prioritise these in your first PYQ pass.
| Chapter | Weightage (approx) | Typical Questions |
|---|---|---|
| The Living World | 2% | 1 |
| Biological Classification | 3% | 1 |
| Plant Kingdom | 3% | 1 |
| Animal Kingdom | 4% | 1–2 |
| Morphology of Flowering Plants | 3% | 1 |
| Anatomy of Flowering Plants | 3% | 1 |
| Structural Organisation in Animals | 2% | 1 |
| Cell: The Unit of Life | 4% | 1–2 |
| Biomolecules | 3% | 1 |
| Cell Cycle & Cell Division | 3% | 1 |
| Transport in Plants | 2% | 1 |
| Mineral Nutrition | 2% | 1 |
| Photosynthesis in Higher Plants | 4% | 1–2 |
| Respiration in Plants | 3% | 1 |
| Plant Growth & Development | 3% | 1 |
| Digestion & Absorption | 3% | 1 |
| Breathing & Exchange of Gases | 3% | 1 |
| Body Fluids & Circulation | 3% | 1 |
| Excretory Products & Elimination | 3% | 1 |
| Locomotion & Movement | 3% | 1 |
| Neural Control & Coordination | 3% | 1 |
| Chemical Coordination & Integration | 3% | 1 |
| Reproduction in Organisms | 2% | 1 |
| Sexual Reproduction in Flowering Plants | 4% | 1–2 |
| Human Reproduction | 4% | 1–2 |
| Reproductive Health | 2% | 1 |
| Principles of Inheritance & Variation | 5% | 1–2 |
| Molecular Basis of Inheritance | 6% | 2 |
| Evolution | 3% | 1 |
| Human Health & Disease | 4% | 1–2 |
| Microbes in Human Welfare | 2% | 1 |
| Biotechnology: Principles & Processes | 3% | 1 |
| Biotechnology & Its Applications | 3% | 1 |
| Organisms & Populations | 2% | 1 |
| Ecosystem | 3% | 1 |
| Biodiversity & Conservation | 2% | 1 |
| Environmental Issues | 2% | 1 |
| Strategies for Enhancement in Food Production | 2% | 1 |
How to Practise Biology PYQs Effectively
- 1Read the NCERT chapter first. NEET Biology PYQs are NCERT-line-level — attempting them before reading the chapter wastes the question.
- 2Annotate every PYQ with the NCERT line. Open NCERT, find the line, underline it. You'll build a mental index of “NCERT lines NTA loves” within a week.
- 3Genetics and Molecular Biology first. Highest weightage, highest repeat rate, and the chapters where concept + PYQ practice compound the fastest.
- 4Then Human Physiology as a block. Digestion → Circulation → Respiration → Excretion → Nervous → Endocrine — study them in this order with PYQs after each.
- 5Run timed Biology-only mocks. 90 questions in 45 minutes — the real NEET budget. Any question taking more than 40 seconds gets skipped and flagged.
Why Biology PYQs Are Non-Negotiable
- NCERT-line recall is the game. NEET questions often test a single NCERT sentence. PYQs reveal which sentences NTA tests repeatedly.
- Biology is where rank is built. 330+ in Biology (out of 360) is the unambiguous top-MBBS threshold. PYQ practice is the most direct path.
- Genetics + Molecular Biology alone is ~11%. Two chapters, ~80 marks worth of impact. Over-invest here.
- Speed matters. Finishing Biology in 45 minutes leaves 95 minutes for Physics and Chemistry — the balance that separates 650+ from 600.
Chapter Deep-Dives
Jump into a single chapter for focused PYQs, sub-topic breakdowns and common-mistake callouts.
Related NEET Practice
Frequently asked questions
What NEET Biology PYQs are on exam.fit?
Chapter-wise Biology questions spanning AIPMT 2005 to NEET 2025 — including Phase 1, Phase 2 and re-exam papers. Every question is tagged with chapter, NCERT line reference, year and difficulty.
Which NEET Biology chapters have the highest weightage?
Molecular Basis of Inheritance (~6%), Principles of Inheritance (~5%), Human Reproduction (~4%), Animal Kingdom (~4%), Photosynthesis (~4%), Cell: The Unit of Life (~4%) and Human Health & Disease (~4%). Together they carry nearly 30% of Biology marks.
Is NCERT enough for NEET Biology?
For Biology specifically, NCERT Class 11 and 12 plus the last 10 years of PYQs is sufficient for 330+/360. Biology rewards NCERT fidelity — students who memorise the exact NCERT phrasing consistently outscore those using coaching summaries.
How do PYQ NCERT references work on exam.fit?
Every NEET Biology PYQ is linked to the specific NCERT Class 11/12 chapter and (where the line is distinctive enough) the exact sentence. You can jump from a PYQ to the NCERT context in one click.
Should I do year-wise NEET papers or chapter-wise Biology PYQs?
Start with chapter-wise PYQs — they build chapter mastery fastest. In the last 8 weeks before NEET, switch to full year-wise papers under timed conditions. Mix the two formats in the final month.
How much Biology score gain can I expect from PYQ practice?
Students who work through chapter-wise Biology PYQs over 90 days with disciplined NCERT cross-referencing typically see +30 to +60 in Biology across mocks. Gains are front-loaded in Physiology chapters and back-loaded in Ecology.
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