NEET Biology Weightage Chapter Wise 2026

NEET Biology Weightage Chapter Wise 2026

Introduction

Biology is the most scoring and highest-weightage subject in NEET, contributing 90 questions (360 marks) out of 720. A clear understanding of chapter-wise weightage helps students focus on high-yield topics, save time, and maximize scores.

In this blog, you’ll get a detailed NEET Biology chapter-wise weightage, including Botany and Zoology, preparation strategy, and SEO-friendly insights for NEET 2026.

NEET Biology Weightage Chapter Wise 2026

NEET Biology Exam Pattern (Quick Overview)

Section	Questions	Marks
Botany	45	180
Zoology	45	180
Total Biology	90	360

NEET Biology Weightage – Chapter Wise (Botany)

Class 11 Botany Weightage

Chapter	Expected Questions
Cell Structure & Function	4–5
Plant Physiology (Total)	10–12
– Photosynthesis	2–3
– Respiration in Plants	1–2
– Plant Growth & Hormones	2–3
Morphology of Flowering Plants	2–3
Anatomy of Flowering Plants	2–3
Diversity in Living World	2–3
Biological Classification	2–3

Class 12 Botany Weightage

Chapter	Expected Questions
Genetics & Evolution	10–12
Reproduction in Plants	4–5
Molecular Basis of Inheritance	4–5
Biotechnology (Principles & Applications)	4–5
Ecology & Environment	4–5
Strategies for Enhancement in Food Production	1–2

NEET Biology Weightage – Chapter Wise (Zoology)

Class 11 Zoology Weightage

Chapter	Expected Questions
Human Physiology (Total)	12–14
– Digestion & Absorption	2–3
– Breathing & Exchange of Gases	2
– Body Fluids & Circulation	2–3
– Excretory Products	1–2
– Nervous System	2–3
– Endocrine System	2–3
Animal Kingdom	2–3
Structural Organisation in Animals	1–2

Class 12 Zoology Weightage

Chapter	Expected Questions
Human Reproduction	4–5
Reproductive Health	2–3
Genetics & Evolution	6–8
Biotechnology	3–4
Ecology & Environment	4–5
Human Health & Disease	3–4

High-Weightage Chapters You MUST Focus On

Human Physiology

Genetics & Evolution

Biotechnology

Ecology & Environment

Cell Biology

These chapters alone can contribute 60–65% of Biology questions.

Smart NEET Biology Preparation Strategy

• NCERT is 100% mandatory (line-by-line)

• Focus on diagrams, tables, and examples

• Practice previous 10–15 years PYQs

• Revise high-weightage chapters first

• Make short notes for Biotechnology & Genetics

  
  

Frequently Asked Questions (FAQs)

Q1. Can I score 340+ in Biology by studying selective chapters?

Yes, if you master high-weightage chapters with NCERT.

Q2. Are diagrams important for NEET Biology?

Yes, many questions are diagram-based.

Q3. Does weightage change every year?

Slight variations occur, but core chapters remain consistent.

Q4. Is Class 11 or Class 12 Biology more important?

Class 12 has slightly higher weightage.

Conclusion

Understanding NEET Biology chapter-wise weightage is the smartest way to prepare effectively. By focusing on high-yield chapters, mastering NCERT, and practicing PYQs, aspirants can easily score 300+ marks in Biology.

Consistent revision and smart planning are the keys to cracking NEET 2026.

Detailed Weightage & Strategy on NEET Biology Weightage Chapter Wise 2026

• Genuine High Weightage Chapters for NEET 2026: Published just days ago, this video by OM PRABHU AIIMS DELHI analyzes high-weightage chapters based on most repeated PYQs, identifying the 42 essential chapters to target for a high score.

• The Most Detailed NEET 2026 PCB Weightage Analysis: A comprehensive breakdown from Vedantu NEET English covering Physics, Chemistry, and Biology, which is great for readers looking for the broader context of the exam.

• High-Weightage Chapters for NEET 2026 Biology: Seep Pahuja provides a strategic look at which topics give the maximum marks and should not be ignored to achieve a 650+ score.