Preparing for NEET 2025? By using the NEET 2025 Biology Chapterwise Weightage, you can ace Biology with an optimal strategy!
NEET Exam 2025 Overview
- For students applying to medical colleges in India, the National Testing Agency (NTA) introduced the National Eligibility cum Entrance Test (NEET).
- The NEET-UG exam consists of three subjects: Physics, Chemistry, and Biology.
- The tentative date for NEET-UG 2025 is May 4, 2025.
Before diving into the NEET 2025 Biology Chapterwise Weightage, you must refer to the NEET-UG 2025 Syllabus for a clear understanding of the chapters.
NEET 2025 Chapterwise Weightage for Biology
From the following NEET Biology Chapterwise Weightage 2025, we can observe that chapters like Molecular Basis of Inheritance, Principles of Inheritance and Variation, Sexual Reproduction in Flowering Plants, Cell: The Unit of Life, etc. hold a high weightage.
| Unit | Number of Questions | NEET Biology Chapterwise Weightage |
| The Living World | 9 | 0.75% |
| Biological Classification | 40 | 3.33% |
| Plant Kingdom | 45 | 3.75% |
| Animal Kingdom | 52 | 4.33% |
| Morphology of Flowering Plants | 50 | 4.17% |
| Anatomy of Flowering Plants | 42 | 3.5% |
| Structural Organisation in Animals | 21 | 1.75% |
| Cell: The Unit of Life | 62 | 5.17% |
| Biomolecules | 49 | 4.08% |
| Cell Cycle and Cell Division | 54 | 4.5% |
| Photosynthesis in Higher Plants | 31 | 2.58% |
| Respiration in Plants | 22 | 1.83% |
| Plant Growth and Development | 32 | 2.67% |
| Breathing and Exchange of Gases | 29 | 2.42% |
| Body Fluids and Circulation | 37 | 3.08% |
| Excretory Products and their Elimination | 24 | 2% |
| Locomotion and Movement | 32 | 2.67% |
| Neural Control and Coordination | 14 | 1.17% |
| Chemical Coordination and Integration | 38 | 3.17% |
| Sexual Reproduction in Flowering Plants | 62 | 5.17% |
| Human Reproduction | 47 | 3.92% |
| Reproductive Health | 41 | 3.42% |
| Principles of Inheritance and Variation | 79 | 6.58% |
| Molecular Basis of Inheritance | 93 | 7.75% |
| Evolution | 47 | 3.92% |
| Human Health and Diseases | 45 | 3.75% |
| Microbes in Human Welfare | 28 | 2.33% |
| Biotechnology: Principle and Process | 61 | 5.08% |
| Biotechnology and its Applications | 42 | 3.5% |
| Organisms and Populations | 39 | 3.25% |
| Ecosystem | 26 | 2.17% |
| Biodiversity and Conservation | 40 | 3.33% |
NEET 2025 Biology Important Topics
For better understanding of the Biology Chapterwise Weightage in NEET, it can be split into two major sections: Botany and Zoology.
Below is a section-wise breakdown of the NEET Biology Chapterwise Weightage.
NEET Botany Chapterwise Weightage and Important Topics
Historically in Botany, most of the questions were concept-based and diagram-based.
The Chapterwise Weightage of each chapter and their important topics that frequently appear are as follows:
1. The Living World (0.75%)
- Characteristics of Living Organisms
- Taxonomy and Nomenclature
2. Biological Classification (3.33%)
- Five-Kingdom Classification
- Lichens and Viruses
3. Plant Kingdom (3.75%)
- Algae, Bryophytes, Pteridophytes, Gymnosperms, and Angiosperms
- Alternation of Generations
4. Morphology of Flowering Plants (4.17%)
- Flower Structure
- Modifications of Roots, Stems, and Leaves
5. Anatomy of Flowering Plants (3.5%)
- Secondary Growth
- Anatomy of Dicotyledonous and Monocotyledonous Plants
6. Cell: The Unit of Life (5.17%)
- Cell Organelles
- Prokaryotic Cells
- Eukaryotic Cells
7. Cell Cycle and Cell Division (4.5%)
- Meiosis
- Cell Cycle
8. Photosynthesis in Higher Plants (2.58%)
- The Electron Transport
- The C4 Pathway
- Photorespiration
- Pigments in Photosynthesis
- Light Reaction
9. Respiration in Plants (1.83%)
- Aerobic Respiration
- Glycolysis
- Fermentation
- Amphibolic Pathway
10. Plant Growth and Development (2.67%)
- Plant Growth Regulators
- Growth
11. Sexual Reproduction in Plants (5.17%)
- Pre-fertilisation: Structures and Events
- Post-fertilisation: Structures and Events
12. Principles of Inheritance and Variation (6.58%)
- Genetic Disorders
- Mendel’s Laws of Inheritance
- Chromosomal Theory of Inheritance, Linkage, and Recombination
13. Molecular Basis of Inheritance (7.75%)
- Transcription
- The DNA
- Regulation of Gene Expression
- The Search for Genetic Material
14. Microbes in Human Welfare (2.33%)
- Microbes in Industrial Products
- Microbes as Bio Control Agents
- Microbes in Sewage Treatment
- Microbes as Biofertilisers
15. Organisms and Population (3.25%)
- Population Interactions
- Population Attributes
- Population Interactions
16. Ecosystem (2.17%)
- Energy Flow
- Productivity
- Ecosystem: Structure and Functions
- Decomposition
17. Biodiversity and Conservation (3.33%)
- Biodiversity and Conservation
- Loss of Biodiversity
- Concept of Biodiversity
Zoology Chapterwise Weightage and Important Topics for NEET
Most of the questions that appeared in Zoology were direct recall-based questions that require knowledge of NCERT definitions, examples, and key facts.
The Chapterwise Weightage of each Zoology chapter and their important topics are as follows:
1. Animal Kingdom (4.33%)
- Basis of Classification
- Important Phyla
2. Structural Organisation in Animals (1.75%)
- Types of Animal Tissues
- Earthworm, Cockroach, and Frog Anatomy
3. Biomolecules (4.08%)
- Enzymes
- Lipids
- Carbohydrates
- Protein
4. Breathing and Exchange of Gases (2.42%)
- Mechanism of Breathing
- Disorders of the Respiratory System
- Transport of Gases
5. Body Fluids and Circulation (3.08%)
- Blood
- Double Circulation
- Circulatory Pathways
6. Excretory Products and Their Elimination (2%)
- Regulation of Kidney Function
- Urine Formation
- Micturition
- Human Excretory System
- Disorders of the Excretory System
7. Locomotion and Movement (2.67%)
- Disorders of Muscular and Skeletal System
- Joints
- Muscles
- Skeletal System and Function
8. Neural Control and Coordination (1.17%)
- Human Neural System
- Neuron: Structural and Functional Unit
9. Chemical Coordination and Integration (3.17%)
- Human Endocrine System
- Hypo and Hyperactivity, and Related Disorders
- Mechanism of Hormone Action
10. Human Reproduction (3.92%)
- Menstrual Cycle
- Fertilisation and Implantation
- Gametogenesis
- Pregnancy and Embryonic Development
11. Reproductive Health (3.42%)
- Population Explosion and Birth Control
- Sexually Transmitted Diseases (STD)
- Infertility and Assisted Reproductive Technologies
12. Evolution (3.92%)
- Evidences of Evolution
- Hardy-Weinberg’s Principle
- Origin and Evolution of Man
- Adaptive Radiation
- Gene Flow and Genetic Drift
13. Human Health and Disease (3.75%)
- Immunity
- Common Diseases in Humans
- Drugs and Alcohol Abuse
14. Biotechnology: Principle and Process (5.08%)
- Tools of Recombinant DNA Technology
- Process of Recombinant DNA Technology
15. Biotechnology: Application (3.5%)
- Biotechnology Applications in Medicine
- Biotechnology Applications in Agriculture
- Ethical Issues
Analysis of the NEET-UG 2024 Biology Question Paper
The difficulty level of the NEET 2024 Biology paper was balanced with questions ranging from easy to tough. The questions were match the following, multiple-choice, and diagram-based.
For a more detailed analysis of the Biology Question Paper of NEET 2024, click here.
Conclusion
To summarise it, studying NEET Biology Chapterwise Weightage can help you understand the important topics and key concepts that are repeated and relevant each year. When it comes to Biology, ensure you understand the diagrams, learn key concepts properly, and maintain an effective study schedule to maximise your NEET scores.
FAQs
1. What is NEET Biology Chapterwise Weightage?
Ans: NEET Biology Chapterwise Weightage allows you to analyse the weightage of each chapter and assess their important sub-topics.
2. How can knowing Chapterwise Weightage benefit my NEET preparation?
Ans: Understanding the NEET Biology Chapterwise Weightage allows you to focus on important topics and form a study plan that aligns with the weightage assigned to each chapter.
3. Which Biology chapters have the highest weightage in NEET?
Ans: Chapters like Molecular Basis of Inheritance, Principles of Inheritance and Variation, Sexual Reproduction in Flowering Plants, Cell: The Unit of Life, etc. hold a high weightage in NEET Biology.
4. Are there chapters with lower weightage that I can afford to skip?
Ans: No, you shouldn't ignore the chapters with lower weightage. While you can focus more on chapters with higher weightage, lower weightage chapters need to be studied as well.
5. How accurate are the weightage percentages provided in various sources?
Ans: We provide reliable weightage percentage based on the information from our NEET-UG 12 Previous Years Solved Papers With Solutions. This book has been created by our panel of experts.
6. How can I effectively use Chapterwise Weightage information in my study plan?
Ans: By using the NEET Chapterwise Weightage, you can streamline your study plan by placing the high weightage chapters over the low weightage chapters.
