A-Level Biology Revision Notes

17 free revision notes covering every main A-Level Biology topic. No account needed.

Biological Molecules

Carbohydrates and Lipids Proteins and Enzymes Nucleic Acids: DNA and RNA

Cell Structure and Division

Eukaryotic and Prokaryotic Cells Mitosis and the Cell Cycle Meiosis and Genetic Variation

Energy Transfers: Respiration and Photosynthesis

Aerobic Respiration Photosynthesis

Exchange and Transport

Transport across Cell Membranes Mass Transport and Gas Exchange

Gene Expression and Regulation

Protein Synthesis: Transcription and Translation

Genetic Information and Variation

Genetic Diversity and Mutation

Genetics, Populations and Evolution

Inheritance and Genetic Crosses Populations and the Hardy-Weinberg Principle

Organisms and the Environment

Energy Transfer and Nutrient Cycles

Response and Homeostasis

Nervous Coordination: Nerve Impulses and Synapses Homeostasis and Negative Feedback

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