NEET Biology Chapter-Wise Weightage 2025: Expected marks distribution for all units
After analysing the question papers of the previous years, NEET Biology Chapter-Wise Weightage 2025 has been provided on the page below, along with unit-wise weightage for better clarity.
NEET Biology Chapter-Wise Weightage 2025: For students aspiring to crack the NEET 2025, understanding the chapter-wise weightage of the Biology section is essential. The NEET Biology Chapter-Wise Weightage 2025 provides a comprehensive breakdown of the marks allocated to each chapter, enabling students to strategize their preparation effectively. Along with the chapter-wise weightage, candidates can check the unit-wise weightage to identify the high-scoring chapters and focus on mastering those topics. The most important chapters include Animal Kingdom, Cell Cycle & Cell Division, Principles of Inheritance and Variation, Molecular Basis of Inheritance, and Biotechnology.
Moreover, understanding the chapter-wise weightage helps students prioritize their weak areas, improve their understanding of those topics, and ultimately, enhance their overall performance in the exam.
NEET Biology Chapter-Wise Weightage 2025
Based on the previous year’s trend, here is NEET Biology chapter-wise weightage 2025.
| Chapter Name | Expected Total Number of Questions |
| Animal Kingdom | 5 to 6 questions |
| Cell Cycle & Cell Division | 5 to 6 questions |
| Principles of Inheritance and Variation | 5 to 6 questions |
| Molecular Basis of Inheritance | 5 to 6 questions |
| Biotechnology: Its Process & Principles | 5 to 6 questions |
| Plant Kingdom | 4 to 5 questions |
| Cell: The Unit of Life | 4 to 5 questions |
| Biomolecule | 4 to 5 questions |
| Photosynthesis | 4 to 5 questions |
| Neural Control and Coordination | 4 to 5 questions |
| Sexual Reproduction in Flowering Plants | 4 to 5 questions |
| Human Reproduction | 4 to 5 questions |
| Human Health and Disease | 4 to 5 questions |
| Organism and Population | 4 to 5 questions |
| Morphology of Flowering Plants | 3 to 4 questions |
| Structural Organisation in Animals | 3 to 4 questions |
| Respiration in Plants | 3 to 4 questions |
| Plant Growth & Development | 3 to 4 questions |
| Breathing & Exchange of Gases | 3 to 4 questions |
| Body Fluids and Circulation | 3 to 4 questions |
| Chemical Control and Coordination | 3 to 4 questions |
| Reproductive Health | 3 to 4 questions |
| Biotechnology and its Application | 3 to 4 questions |
| Biodiversity and Conservation | 3 to 4 questions |
| Biological Classification | 2 to 3 questions |
| Anatomy of Flowering Plants | 2 to 3 questions |
| Excretion of Products & Elimination | 2 to 3 questions |
| Locomotion and Movement | 2 to 3 questions |
| Evolution | 2 to 3 questions |
| Microbes in Human Welfare | 2 to 3 questions |
| Ecosystem | 2 to 3 questions |
| Living World | 1 to 2 questions |
NEET Biology Unit-Wise Weightage 2025
The following table displays NEET Biology unit-wise weightage 2025 in a percentage format based on the previous year’s analysis:
| Unit Name | Weightage |
| Class 11 Syllabus | |
| Diversity of Living Organisms | 11% |
| Structural Organization in Plants and Animals | 7% |
| Cell: Structure and Function | 8% |
| Plant Physiology | 7% |
| Human Physiology | 18% |
| Class 12 Syllabus | |
| Reproduction | 11% |
| Genetics and Evolution | 19% |
| Biology and Human Welfare | 4% |
| Biotechnology & its Applications | 10% |
| Ecology and Environment | 5% |
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