NEET Biology Chapter Wise Weightage : Students preparing for NEET 2026 must understand that Biology carries 50% of the total marks. Knowing the NEET Biology chapter wise weightage helps aspirants prioritise important topics and improve their chances of scoring higher. Biology plays the most important role in the National Eligibility cum Entrance Test because it contributes 360 marks out of 720.
According to the Neet syllabus determined by the National Testing Agency (NTA), understanding the NEET Biology weightage 2026 is quite essential. This blog highlights the NEET Biology chapter-wise weightage to study efficiently. So, read on and decode a roadmap for yourself.
NEET Biology Weightage Explained
As half of the NEET paper is dedicated to Biology, here is a breakdown of the structure that can help you create a smart preparation strategy:
NEET Biology Marks Distribution and Question Pattern
Out of 720 total marks, Biology in the NEET exam carries 360 marks – the 50% of the exam. Yes! That is why Understanding the Biology weightage in NEET is essential for smart preparation. There are 90 questions, 45 for Botany and 45 for Zoology. Further, this subject has 2 sections – Section A consists of 35 compulsory questions, and Section B has 15 questions, out of which 10 are compulsory. No random guessing; the reason? The correct answer will give you 4 marks, but the wrong one will take away 1 mark.
NEET Biology Chapter Wise Weightage 2026: A Detailed Overview
The NEET Biology Chapter Wise Weightage 2026 helps students understand which topics are asked more frequently in the exam. Since Biology carries 360 marks, focusing on high-weightage chapters can significantly improve your score. Analysing previous year trends also helps in planning smart revision and prioritising important NCERT topics. Below is a detailed breakdown of chapter-wise weightage for effective preparation.
NEET Biology Chapter Wise Weightage 2026 For Botany
The NEET Biology Chapter Wise Weightage 2026 for Botany gives a clear idea of which chapters from Class 11 and Class 12 are more important for the exam. By understanding this distribution, students can focus on key NCERT topics and strengthen their preparation for the NEET.
NEET 2026 Class 11 Botany Chapter Wise Weightage
| Chapter | Topics Covered | Number of Questions | Marks Allocation |
| The Living World | Characteristics of living organisms, diversity, taxonomy, organisation, nomenclature, and biodiversity | 2 | 8 |
| Biological Classification | Five-kingdom classification, binomial nomenclature, hierarchy, evolutionary relationships and characteristics | 2 | 8 |
| Plant Kingdom | Algae, bryophyta, pteridophyta, gymnosperms, angiosperms (flowering plants) | 2 | 8 |
| Morphology of Flowering Plants | Root, stem, leaf, flower, fruit, seed | 1 | 4 |
| Anatomy of Flowering Plants | Tissue systems, vascular tissues, secondary growth, meristems and tissues | 3 | 12 |
| Cell: The Unit of Life | Cell structure and organelles, cell membrane, nucleus, cytoplasm, mitochondria, plastids, ribosomes | 5 | 20 |
| Cell Cycle and Cell Division | Mitosis, meiosis, cell cycle phases and regulation | 2 | 8 |
| Transport in Plants | Movement of water and minerals, transpiration, translocation of solutes, stomata | 3 | 12 |
| Mineral Nutrition | Essential elements, deficiency symptoms, mechanisms of uptake and transport | 1 | 4 |
| Photosynthesis in Higher Plants | Light-dependent and light-independent reactions, chloroplast structure, and factors affecting photosynthesis | 1 | 4 |
| Respiration in Plants | Aerobic respiration, anaerobic respiration, glycolysis, Krebs cycle, electron transport chain | 2 | 8 |
| Plant Growth and Development | Plant hormones, photoperiodism, vernalization, seed dormancy, and growth movements | 2 | 8 |
NEET 2026 Class 12 Botany Chapter Wise Weightage
| Chapters | Topics Covered | Number of Questions | Marks Allocated |
| Sexual Reproduction in Flowering Plants | Plant sexual organs, fertilisation, and seed formation | 5 | 20 |
| Principles of Inheritance and Variation | Mendelian genetics, laws of inheritance, and mutations | 7 | 28 |
| Molecular Basis of Inheritance | DNA structure, replication, transcription, translation | 3 | 16 |
| Microbes in Human Welfare | Microorganisms, their role in food production, and medicine | 1 | 4 |
| Organisms and Populations | Population growth, carrying capacity, and ecological interactions | 1 | 4 |
| Ecosystem | Ecosystem structure, energy flow, nutrient cycling | 1 | 4 |
| Biodiversity and Its Conservation | Biodiversity loss, conservation methods, and protected areas | 3 | 16 |
| Environmental Issues | Pollution, climate change, and sustainable development | 4 | 16 |
NEET Biology Chapter Wise Weightage 2026 For Zoology
The NEET Biology Chapter Wise Weightage 2026 for Zoology helps students understand which Chapters & topics from Class 11 and Class 12 are asked more frequently in the exam. Analysing this distribution allows aspirants to focus on important concepts and plan a more effective preparation strategy for the National Eligibility cum Entrance Test.
NEET Class 11 Zoology Chapter Wise Weightage
| Chapters | Topics Covered | Number of Questions | Marks Allocated |
| Animal Kingdom | Learn about the classification, general characteristics, reproductive strategies, and economic importance of different animals | 4 | 16 |
| Structural Organisation in Animals | Understand animal tissues, external and internal features, cellular organisation, and adaptations of tissues | 4 | 16 |
| Biomolecules | Study carbohydrates, proteins, lipids, nucleic acids, enzymes, and their biological importance | 4 | 16 |
| Breathing and Exchange of Gases | Explore respiratory organs, the mechanism of breathing, gas exchange, respiratory pigments, and adaptations to different environments | 2 | 8 |
| Human Physiology | Cover the digestive system, excretory system, nervous system, circulatory system, endocrine system, reproductive system, immune system, and homeostasis | 2 | 8 |
NEET Class 12 Zoology Chapter Wise Weightage
| Chapters | Topics Covered | Number of Questions | Marks Allocated |
| Biotechnology | Understand genetic engineering, recombinant DNA technology, DNA sequencing, PCR, gene therapy, GMOs, biotechnological applications, and ethical implications | 6 | 24 |
| Reproduction | Learn about sexual and asexual reproduction, reproductive systems, gametogenesis, fertilisation, hormonal control, and reproductive health | 3 | 16 |
| Evolution | Explore theories of evolution, evidence, mechanisms, speciation, convergent and divergent evolution, adaptive radiation, and human evolution | 2 | 8 |
| Biology & Human Welfare | Study health and diseases, microbes in human welfare, biomedical technologies, vaccination, human population growth, biomedical waste management, and drug abuse | 2 | 8 |
Why NEET Biology Chapter Wise Distribution Matters for 2026 Aspirants
Want to know what toppers are doing differently? They do not just study anything randomly; they take time to understand the NEET Biology weightage 2026. This helps in identifying the important chapters and creating a well-structured study plan. Genetics, Human Physiology, Ecology, and Plant Physiology – focusing on high-weight chapters will enhance the score, improve accuracy, boost confidence, and reduce stress. This is win-win; you study less with target preparation and score more.
Conclusion
The National Testing Agency (NTA) is expected to conduct the NEET 2026 exam on May 3, 2026. Get yourself ready with the NEET biology preparation strategy based on weightage. Eligible for the exam? Thoroughly understand the NEET Biology Chapter Wise Weightage to elevate your preparation and improve your self-confidence.
Wondering who can guide you more? At Aakash, the preparation strategy is crafted around the chaper-wise weightage for students to leverage exam-oriented classes. The institute also practice papers according to the NEET Biology topic wise-weightage to make students more prepared
So, All the best for your medical future!
FAQs
Q1. Is there any benefit to knowing the NEET Biology weightage 2026?
Yes! With chapter-wise weightage, you can allocate your time efficiently. This also allows you to focus on high-scoring topics.
Q2. Is it okay to skip low-weightage chapters for NEET 2026?
No! Do not skip anything. You can cover the foundations of low-weightage chapters. The number of questions from these chapters is unpredictable.
Q3. I am preparing for NEET 2026. How much time before should I cover the high-weightage chapters
It is recommended to cover the high-weightage chapters two months before. This will give you adequate time for revision.
