NCERT CLASS 12 · BIOLOGY

Biology revision sheet

This is an original recall guide for year-round study. It does not claim to be a board syllabus or a replacement for the current official NCERT edition.

Organise your revision by topic

Use this as a study map, then confirm the exact chapter names and order in your prescribed book.

  1. Reproduction
  2. Genetics and evolution
  3. Biology in human welfare
  4. Biotechnology
  5. Ecology and environment

Focus

Use labelled diagrams and process maps to connect structure, function, regulation, and variation.

Common mistake to avoid

Do not memorise a diagram as a picture; state the function of every label.

Three prompts before you close the book

  1. Can you label the diagram and give each part’s function?
  2. What is the sequence of this biological process?
  3. Which terms are easily confused and how do they differ?

Open Biology important questions for revision →

A short weekly routine

  1. Open one current chapter in the official NCERT textbook portal ↗.
  2. Make a one-page recall sheet using definitions, formulae, diagrams, examples, or working notes relevant to that chapter.
  3. Answer the three prompts above without looking at the book.
  4. Try the free subject practice ↗, then review only the errors.

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