Biology 2023 past papers
Choose an exam session to view question papers, mark schemes and related source documents.
February/March
7 components
May/June
19 components
October/November
19 components
Revise Biology 9700 by chapter
Revision notes for each chapter of the Cambridge International AS & A Level Biology syllabus (2025-2027).
- Cell structure
- Biological molecules
- Enzymes
- Cell membranes and transport
- The mitotic cell cycle
- Nucleic acids and protein synthesis
- Transport in plants
- Transport in mammals
- Gas exchange
- Infectious diseases
- Immunity
- Energy and respiration
- Photosynthesis
- Homeostasis
- Control and coordination
- Inheritance
- Selection and evolution
- Classification, biodiversity and conservation
- Genetic technology