CBSE Class 11 Biology – Free Resources 2026–27

Complete chapter-wise Class 11 Biology study resources aligned with the official CBSE 2026–27 curriculum. The course has five theory units and 19 summative chapters. Each chapter on TeachGyan includes detailed explanation, chapter-specific practice, MCQs, HOTS/competency questions, short-answer practice, long-answer practice and revision guidance.

Official CBSE 2026–27 Structure

CBSE assigns 70 marks to Class XI Biology theory across five units: Diversity of Living Organisms (15), Structural Organization in Plants and Animals (10), Cell: Structure and Function (15), Plant Physiology (12), and Human Physiology (18). The practical component is 30 marks. View the official CBSE Biology curriculum. citeturn1view0

Unit I – Diversity of Living Organisms

1. 1. The Living World
2. 2. Biological Classification
3. 3. Plant Kingdom
4. 4. Animal Kingdom

Unit II – Structural Organization in Plants and Animals

1. 5. Morphology of Flowering Plants
2. 6. Anatomy of Flowering Plants
3. 7. Structural Organisation in Animals

Unit III – Cell: Structure and Function

1. 8. Cell: The Unit of Life
2. 9. Biomolecules
3. 10. Cell Cycle and Cell Division

Unit IV – Plant Physiology

1. 11. Photosynthesis in Higher Plants
2. 12. Respiration in Plants
3. 13. Plant Growth and Development

Unit V – Human Physiology

1. 14. Breathing and Exchange of Gases
2. 15. Body Fluids and Circulation
3. 16. Excretory Products and their Elimination
4. 17. Locomotion and Movement
5. 18. Neural Control and Coordination
6. 19. Chemical Coordination and Integration

Formative-Only Topic

Digestion and Absorption is included by CBSE for formative learning using the specified CBSE reading material and is not part of the summative theory assessment. We should therefore not present it as a normal 20th summative chapter. citeturn1view0

Practical Resources

The official curriculum also specifies practical experiments and spotting activities, including flowering-plant study, root/stem sections, osmosis, plasmolysis, stomata, transpiration, biomolecule tests, chromatography, respiration and urine tests, along with microscope/specimen/model identification. citeturn1view0

Study note: Use these resources with the prescribed NCERT textbook and the latest CBSE curriculum. If CBSE issues a later clarification, the official CBSE document takes precedence.