Sit the real paper
Previous-year board papers and the CBSE sample papers, word for word — three hours, server-timed, marked question by question against the official scheme, diagrams included. Two papers free on every account; unlimited on AI Plus. New papers are added through the season.
The Class 11 Biology papers are being typed in — the sample paper lands the week CBSE releases it, and the previous-year papers follow. See the papers that are live →
Chapter by chapter, in marks order
Marks are the chapter’s approximate share of the Biology theory paper (CBSE 2026-27 unit weightage). Start from the top, then sit a paper above to see how the chapters are asked. Log in to see your own status per chapter.
| Chapter | Marks | Do |
|---|---|---|
Ch 1 – The Living World Ch. 1 |
~5 | |
Ch 2 – Biological Classification Ch. 2 |
~5 | |
Ch 3 – Plant Kingdom Ch. 3 |
~5 | |
Ch 4 – Animal Kingdom Ch. 4 |
~5 | |
Ch 5 – Morphology of Flowering Plants Ch. 5 |
~5 | |
Ch 6 – Anatomy of Flowering Plants Ch. 6 |
~5 | |
Ch 7 – Structural Organisation in Animals Ch. 7 |
~5 | |
Ch 8 – Cell: The Unit of Life Ch. 8 |
~5 | |
Ch 9 – Biomolecules Ch. 9 |
~5 | |
Ch 10 – Cell Cycle and Cell Division Ch. 10 |
~5 | |
Ch 11 – Photosynthesis in Higher Plants Ch. 11 |
~5 | |
Ch 12 – Respiration in Plants Ch. 12 |
~5 | |
Ch 13 – Plant Growth and Development Ch. 13 |
~5 | |
Ch 14 – Breathing and Exchange of Gases Ch. 14 |
~5 | |
Ch 15 – Body Fluids and Circulation Ch. 15 |
~5 | |
Ch 16 – Excretory Products and their Elimination Ch. 16 |
~5 | |
Ch 17 – Locomotion and Movement Ch. 17 |
~5 | |
Ch 18 – Neural Control and Coordination Ch. 18 |
~5 | |
Ch 19 – Chemical Coordination and Integration Ch. 19 |
~5 |