Biology 2024 past papers
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May/June
9 components
October/November
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Revise Biology 5090 by chapter
Revision notes for each chapter of the Cambridge O Level Biology syllabus (2026-2028).
- Cells
- Classification
- Movement Into and Out of Cells
- Biological Molecules
- Enzymes
- Plant Nutrition
- Transport in Flowering Plants
- Human Nutrition
- Human Gas Exchange
- Respiration
- Transport in Humans
- Disease and Immunity
- Excretion
- Coordination and Control
- Coordination and Response in Plants
- Development of Organisms and Continuity of Life
- Inheritance
- Biotechnology and Genetic Modification
- Relationships of Organisms with One Another and with the Environment