Quick Summary: The NEET Biology chapter-wise weightage for 2026 shows which chapters carry the highest marks in Botany and Zoology. Genetics, Molecular Basis of Inheritance, Cell Cycle, Human Physiology, Ecology, Animal Kingdom, Biomolecules, and Biotechnology have the biggest share. Biology has 100 questions, out of which 90 are attempted, carrying 360 marks. The blog also gives the full Botany–Zoology weightage tables, deleted topics, important chapters list, difficulty analysis, best books, and easy preparation tips using NCERT and mock tests.
Preparing for the NEET Biology Chapter Wise Weightage is very important for students appearing in NEET 2026. While studying, it becomes easier to score high when you focus more on the Biology topics that are asked again and again. To get a better score, you should first understand the complete NEET Biology syllabus and also check the Biology Chapter Wise Weightage for NEET. This helps you make the right plan and gives more time (race against time phrase meaning) to important chapters.
When you know which chapters carry more marks in the NEET UG Exam 2026, you can complete the whole syllabus smoothly and stay confident. It also helps you focus on topics that are asked more frequently in the NEET question paper.
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NEET Biology Chapter Wise Weightage 2026: Overview
The NEET Biology Chapter Wise Weightage 2026 is a very useful guide for every aspirant because Biology covers 50% of the exam. Even though every chapter in Biology matters, knowing which ones are more important makes your preparation better. By checking the chapters with the highest weightage for NEET 2026 Biology, you can plan your study hours properly and revise without confusion.
The table below will help you know the most weightage chapters for NEET Biology so that you can prepare smartly. You can also download the NEET Chapter Wise Weightage PDF to stay more focused and improve your chances of scoring well in the exam.
NEET Biology Exam Pattern 2026 and Marks Distribution
Before checking the NEET Biology Chapter Wise Weightage 2026, students should first know the paper pattern to plan the exam better. The NEET UG Exam 2026 Biology pattern checks understanding with a simple and balanced format. The table below shows the marking scheme and sections clearly for Biology Chapter Wise Weightage for NEET.
| Subject | Parts | Total Questions | Questions to be Attempted | Total Marks |
| Botany | Part A | 35 | 35 | 140 |
| Part B | 15 | Any 10 | 40 | |
| Zoology | Part A | 35 | 35 | 140 |
| Part B | 15 | Any 10 | 40 | |
| Overall Biology | – | 100 | 90 | 360 |
NEET Biology Exam Marking Scheme 2026
- In the NEET UG Exam 2026, students get 4 marks for each correct answer.
- For every wrong response, 1 mark will be reduced.
- If any question is left, no marks are deducted.
Students can also check important Biology topics for NEET that cover key concepts and help in regular exam preparation.
Check Out: How Can an Average Student Crack NEET 2026?
NEET Biology Chapter Wise Weightage
You can check the NEET Biology Chapter Wise Weightage 2026 to know the value of each chapter and plan better for scoring well. It helps you focus on chapters with the highest weightage for NEET 2026 Biology.
This resource is useful for students who want clear details on the most weightage chapters for NEET Biology. You can download the NEET Chapter Wise Weightage PDF for quick and easy access during preparation.
| Chapters / Topics | Weightage (%) |
| Introduction to Life Forms (The Living World) | 1% |
| Grouping & Classification of Organisms (Biological Classification) | 3% |
| Environmental Balance & Conservation Efforts (Biodiversity and Conservation) | 4% |
| Gas Exchange & Plant Breathing (Respiration in Plants) | 4% |
| Microorganisms & Their Applications (Microbes in Human Welfare) | 4% |
| Structure & Working of Ecosystems (Ecosystem) | 4% |
| Interactions Among Species (Organisms and Populations) | 4% |
| Food Production in Plants Using Sunlight (Photosynthesis in Higher Plants) | 4% |
| Cell Structure & Basic Functions (Cell: The Unit of Life) | 5% |
| Reproduction Mechanism in Flowering Plants (Sexual Reproduction in Flowering Plants) | 6% |
| External Features of Angiosperms (Morphology of Flowering Plants) | 6% |
| Plant Development Stages & Hormones (Plant Growth and Development) | 6% |
| Internal Structures of Angiosperms (Anatomy of Flowering Plants) | 7% |
| Types & Classification in the Plant World (Plant Kingdom) | 7% |
| How Cells Divide & Grow (Cell Cycle and Cell Division) | 9% |
| Variation & Heredity Concepts (Principles of Inheritance and Variation) | 10% |
| DNA, Genes & Expression (Molecular Basis of Inheritance) | 14% |
Check Out: Toughest Chapters in NEET: Subject-wise in Chemistry, Physics, and Biology
NEET Biology Chapter Wise Weightage 2026 For Zoology
The NEET Biology Chapter Wise Weightage 2026 for Zoology shows how important each chapter is in the exam. This weightage helps you plan your study for the NEET UG Exam 2026. It tells you which chapters matter so you can focus better. It becomes easier to score well when you know what needs attention.
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NEET Chapter Wise Weightage 2026 for Zoology |
|
| NEET Zoology Chapters / Key Areas | Approx. Weight Share |
| Neural Regulation & Coordination | 2% |
| Breathing & Gas Exchange | 4% |
| Chemical Coordination & Hormonal Control | 4% |
| Blood, Circulation & Transport Mechanisms | 5% |
| Excretion & Removal of Waste Products | 5% |
| Evolution & Origin of Life | 6% |
| Movement & Muscular Locomotion | 6% |
| Human Reproduction System | 6% |
| Diseases & Human Health Issues | 6% |
| Applications of Biotechnology | 7% |
| Reproductive Well-Being & Health | 8% |
| Animal Structural Organisation (Animal Tissues) | 8% |
| Biomolecules & Biological Chemistry | 10% |
| Biotechnology: Basics, Tools & Techniques | 12% |
| Diversity in the Animal World (Animal Kingdom) | 13% |
You can check the NEET Chapter Wise Weightage PDF online if you want details. When you follow the Biology Chapter Wise Weightage for NEET, you can focus on chapters with higher marks. These are most weightage chapters for NEET Biology. For Botany, the NEET Biology Chapter Wise Weightage shows that some questions are easy, some need understanding, and a few are tougher. This helps you prepare the right way.
Check Out: Why are Previous Years’ NEET Question Papers and Mock Tests important?
Chapter-Wise Weightage Analysis of NEET Botany
In the Botany part of the exam, the NEET Biology Chapter Wise Weightage shows that questions are divided into simple, moderate, and tough levels. Easy questions check basic ideas, medium ones test understanding, and difficult ones check how well you can think and solve concepts. This kind of weightage analysis helps you see which topics need more practice for the NEET exam.
| Chapter / Topic | Total Questions (Past Years) | Difficulty Split (Easy / Moderate / Tough) | Avg. Questions per Year | Approx. % Weight in Exam |
| Cell Cycle & Cell Division | 23 | 10 / 10 / 3 | 4.60 | 8.95% |
| Molecular Basis of Inheritance | 34 | 16 / 15 / 3 | 6.80 | 13.23% |
| Principles of Inheritance & Variation | 23 | 8 / 10 / 5 | 4.60 | 8.95% |
| Morphology of Flowering Plants | 17 | 7 / 7 / 3 | 3.40 | 6.61% |
| Anatomy of Flowering Plants | 16 | 2 / 11 / 3 | 3.20 | 6.23% |
| Plant Growth & Development | 16 | 13 / 2 / 1 | 3.20 | 6.23% |
| Plant Kingdom | 14 | 8 / 2 / 4 | 2.80 | 5.45% |
| Photosynthesis in Higher Plants | 12 | 5 / 7 / 0 | 2.40 | 4.67% |
| Organisms & Populations | 12 | 5 / 3 / 4 | 2.40 | 4.67% |
| Biodiversity & Conservation | 12 | 9 / 2 / 1 | 2.40 | 4.67% |
| Sexual Reproduction in Flowering Plants | 13 | 6 / 6 / 1 | 2.60 | 5.06% |
| Ecosystem | 10 | 4 / 4 / 2 | 2.00 | 3.89% |
| Environmental Issues | 8 | 5 / 3 / 0 | 1.60 | 3.11% |
| Respiration in Plants | 8 | 3 / 3 / 2 | 1.60 | 3.11% |
| Mineral Nutrition | 7 | 3 / 0 / 4 | 1.40 | 2.72% |
| Transport in Plants | 7 | 3 / 2 / 2 | 1.40 | 2.72% |
| Biological Classification | 7 | 2 / 5 / 0 | 1.40 | 2.72% |
| Microbes in Human Welfare | 5 | 2 / 1 / 2 | 1.00 | 1.95% |
| Cell: The Unit of Life | 6 | 3 / 1 / 2 | 1.20 | 2.33% |
| The Living World | 1 | 0 / 1 / 0 | 0.20 | 0.39% |
| Strategies for Enhancement in Food Production | 2 | 1 / 1 / 0 | 0.40 | 0.78% |
| Duplicate topic removed, final count adjusted | — | — | — | — |
| Overall | 257 | 116 / 97 / 44 | 51.40 | 100% |
Chapter-Wise Weightage Analysis of NEET Zoology
Zoology questions in NEET vary from easy to tough, checking animal facts, understanding systems, and thinking for tricky areas, giving scoring idea for NEET Biology Chapter Wise Weightage Biology.
| Chapter / Topic | Total Questions (Asked Previously) | Difficulty Distribution (Easy / Moderate / Tough) | Avg. Yearly Appearance | Share in NEET (%) |
| Biotechnology – Principles & Processes | 31 | 11 / 14 / 6 | 6.20 | 11.74% |
| Biomolecules | 27 | 8 / 13 / 6 | 5.40 | 10.23% |
| Animal Kingdom | 26 | 10 / 13 / 3 | 5.20 | 9.85% |
| Structural Organisation in Animals (Animal Tissues) | 23 | 7 / 13 / 3 | 4.60 | 8.71% |
| Human Reproduction | 19 | 3 / 11 / 5 | 3.80 | 7.20% |
| Biotechnology & Its Applications | 18 | 5 / 12 / 1 | 3.60 | 6.82% |
| Reproductive Health | 18 | 6 / 12 / 0 | 3.60 | 6.82% |
| Human Health & Disease | 16 | 3 / 11 / 2 | 3.20 | 6.06% |
| Locomotion & Movement | 15 | 1 / 12 / 2 | 3.00 | 5.68% |
| Evolution | 15 | 5 / 8 / 2 | 3.00 | 5.68% |
| Body Fluids & Circulation | 12 | 2 / 9 / 1 | 2.40 | 4.55% |
| Excretory Products & Their Elimination | 11 | 3 / 5 / 3 | 2.20 | 4.17% |
| Breathing & Exchange of Gases | 10 | 2 / 7 / 1 | 2.00 | 3.79% |
| Digestion & Absorption | 10 | 6 / 4 / 0 | 2.00 | 3.79% |
| Chemical Coordination & Integration | 7 | 3 / 3 / 1 | 1.40 | 2.65% |
| Neural Control & Coordination | 6 | 0 / 4 / 2 | 1.20 | 2.27% |
| Overall Count | 264 | 75 / 151 / 38 | 52.80 | 100% |
Deleted topics in NEET Biology 2025
Recent NEET syllabus changes removed some Biology chapters from Class 11 and Class 12, reducing content. This update makes study simple and focused for students preparing for NEET UG Exam 2026, helping them plan with Biology Chapter Wise Weightage for NEET and learn important topics easily without extra pressure.
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Class 11 |
|
| Unit / Chapter | Topics Excluded in NEET Exam |
| Structural Organisation in Animals | Study of Cockroach portion removed |
| Plant Growth & Development | Topics removed: Photoperiodism, Seed Dormancy, Vernalisation |
| Mineral Nutrition | This entire chapter has been excluded |
| Digestion & Absorption | Complete chapter not part of NEET now |
| Neural Control & Coordination | Reflex arc & actions, Sense organs, and Basic structure/function of eye & ear removed |
| Transport in Plants | All topics from this unit are now omitted |
| The Living World | Taxonomical Aids are no longer included |
| Plant Kingdom | Section on Angiosperms taken out from evaluation |
|
Class 12 |
|
| Unit / Chapter | Deleted Content for NEET |
| Organisms & Populations | Population portion & ecological adaptations excluded |
| Reproduction in Organisms | Whole chapter removed |
| Ecosystem | Nutrient cycles, ecosystem services, and ecological succession removed from the syllabus |
| Environmental Issues | Complete unit excluded from NEET evaluation |
| Strategies for Enhancement in Food Production | Full chapter removed from syllabus |
Check Out: Most Important Chapters of NEET 2026 To Score Above 650+ Marks
List of Important Chapters in Biology for NEET 2026
For the NEET UG Exam 2026, Biology is very important because it includes topics from both Botany and Zoology. It covers simple ideas about ecology, genetics, physiology, and other areas related to living things. As Biology has a major role in the exam, focusing on Biology Chapter Wise Weightage for NEET helps students score higher. It also builds a strong base for future medical studies. In total, there are 10 units with 32 chapters in the NEET Biology Chapter Wise Weightage 2026 syllabus from both parts.
Here we have shared the important chapters asked many times in exams. Students should give more attention to chapters with the highest weightage for NEET 2026 Biology to score well in the Biology section.
Botany – Important Chapters for NEET 2026
- Microbes in Human Welfare
- Photosynthesis in Higher Plants
- Principles of Inheritance and Variation
- Cell Cycle and Cell Division
- Biological Classification
- Plant Growth and Development
- Sexual Reproduction in Flowering Plants
- Plant Kingdom
- Molecular Basis of Inheritance
- Cell: The Unit of Life
Zoology – Important Chapters for NEET 2026
- Human Reproduction
- Body Fluids and Circulation
- Animal Kingdom
- Human Health and Disease
- Reproductive Health
- Organisms and Populations
- Structural Organization in Animals
- Chemical Coordination and Integration
- Biodiversity and Conservation
- Neural Control and Coordination
Check Out: Best Books for NEET Preparation 2026
Best Books For NEET 2026 Biology Syllabus
To prepare for the NEET Biology syllabus properly, students must choose the right books. NCERT covers the main topics and is the most important book for the exam. Along with NCERT, some other books help you improve your knowledge and score better in most weightage chapters for NEET Biology. These books offer more questions and quick revision so students can understand concepts better and perform well in the exam.
| Resource / Book Name | Type of Study Material | Publisher / Author |
| Objective Biology (Vol. 1 & 2) | Theory + MCQs Practice | GR Bathla |
| MTG 33 Years NEET/AIPMT – Biology | Chapter-wise Previous Papers | MTG |
| Biology Textbook for Class 11 & 12 | Core NCERT Syllabus Learning | NCERT |
| Objective Botany | Botany-focused Reference | Ansari |
| Trueman’s Biology (Vol. I & II) | Detailed Concepts + Objective Questions | Trueman |
| A Class Book for Botany | Botany Subject Reference Book | A. C. Dutta |
| Arihant NEET Biology – Chapter wise Q&A | Past Papers With Solutions | Arihant |
| Objective Biology | Concept + Practice MCQs | Dinesh Publications |
| MTG – NCERT at Your Fingertips: Biology | Objective Practice Based on NCERT | MTG |
| Pradeep’s Biology (Vol. 1 & 2) | Theory + Practice Questions | Pradeep Publications |
Check Out: How to Prepare for NEET Exam 2026? NEET-UG Preparation Tips
NEET 2026 Biology Syllabus Preparation Tips
You have the main details about the NEET UG Exam 2026, so start preparing for Biology smartly. Here are easy tips to help you study using NEET Biology Chapter Wise Weightage for your preparation.
- Understand syllabus: Check NEET Biology syllabus and exam pattern. Focus on Biology Chapter Wise Weightage for NEET and chapters with the highest weightage for NEET 2026 Biology to plan time.
- Make a routine: Create a timetable with study and revision. Follow it daily to complete NEET Biology Chapter Wise Weightage 2026 on time.
- Give mock tests: Practice mock tests often. It helps speed and accuracy and shows which most weightage chapters for NEET Biology need more work in exam.
- Revise daily: Revise what you study every night and repeat weekly lessons on weekends to remember for exam.
NEET Biology Chapter-wise Weightage FAQs
Q: What are the NEET Biology Chapter Wise Weightage 2026 details?
The chapters with the highest weightage for NEET 2026 Biology are mainly Genetics & Evolution, Human Physiology, and Ecology. Plant Physiology and Biotechnology are also exceptionally significant to get top-quality marks. In Botany, attention will be paid to Molecular Basis of Inheritance, Cell Cycle and Cell Division, Morphology and Anatomy of Flowering Plants. For Zoology, Human Physiology, Biomolecules, and Animal Kingdom are key topics when checking Biology Chapter Wise Weightage for NEET.
Q: Where can I check the NEET Biology Chapter Wise Weightage 2026?
You can easily check NEET Biology Chapter Wise Weightage on trusted education sites like Motion. They share chapter-wise data based on past exams of the NEET UG Exam 2026, showing high scoring areas such as Physiology, Ecology and Genetics to help plan studies properly.
Q: Why is it useful to know NEET Biology Chapter Wise Weightage 2026?
Knowing NEET Biology Chapter Wise Weightage helps students focus more on scoring chapters and manage time better. It also reduces stress and makes preparation strong by giving more attention to topics that carry more marks in the final exam.
Q: How can I get a NEET Chapter Wise Weightage PDF for preparation?
Students can search online and download a NEET Chapter Wise Weightage PDF from coaching websites. The only information NTA has to say about subjects is on subject-wise basis whereas coaching sites such as Motion will offer details on subject in terms of weightage on past exams and can be downloaded comfortably by the user and revised.
Q: Which are the most weightage chapters for NEET Biology?
The most weightage chapters for NEET Biology include Human Physiology, Ecology and Environment, and Genetics & Evolution. Topics like Cell Biology, Plant Physiology and Reproduction are also very helpful to score more marks in the NEET UG Exam 2026.
Q: Has the NEET Biology Syllabus 2026 changed?
No changes have been made in the NEET 2026 Biology syllabus. The NTA and NMC use the same syllabus as NEET 2025, and this allows students to study and never fear that any new update will come.
Q: What extra topics are there in the NEET 2026 Biology syllabus?
The NEET 2026 Biology syllabus mostly remains the same. There is a bit more focus on Human Physiology chapters like Excretory Products and their Elimination, Body Fluids and Circulation, and Neural Control and Coordination.
Q: How many chapters are included in NEET Biology?
There are 38 chapters in the NEET Biology syllabus divided into 10 major units. These cover Class 11 and Class 12 topics like Diversity in the Living World, Cell Structure and Function, Ecology, and Human Physiology.
Q: How many Biology questions will be in NEET?
The NEET Biology section has 90 questions in total 45 from Botany and 45 from Zoology. This section carries 360 marks where every correct answer gives 4 marks.
