Welcome to the A2 Biology Notes page! This page has notes relating to the OCR A-Level Biology specification, however this will also be useful for students sitting exams with different exam boards.
This collection of notes is being constantly added to, and this page will have a complete set of notes for A-Level Biology in the near future, so keep checking back regularly!
F214 Notes
The need for communication
Communication – Download PDF
Maintaining a regular body temperature – Download PDF
Action potentials – Download PDF
Synapses – Download PDF
Hormones – Download PDF
Regulation of blood glucose – Download PDF
Control of heart rate – Download PDF
Excretion
The need for excretion – Download PDF
The liver – Download PDF
The kidney – Download PDF
Osmoregulation – Download PDF
Kidney failure – Download PDF
Photosynthesis
Chloroplasts and photosynthesis – Download PDF
Light-dependent reactions – Download PDF
Light-independent reactions – Download PDF
Limiting factors – Download PDF
Respiration
Respiration – Download PDF
Glycolysis – Download PDF
Krebs cycle – Download PDF
Electron transport chain – Download PDF
Anaerobic respiration – Download PDF
Respiratory substrates – Download PDF
F215 Notes
Cellular control and variation
DNA and protein synthesis – Download PDF
Genetic mutations – Download PDF
The lac operon – Download PDF
Apoptosis – Download PDF
Meiosis – Download PDF
Genetics – Download PDF
The chi-squared test – Download PDF
Population genetics and genetic variation – Download PDF
Natural and artificial selection – Download PDF
Biotechnology and gene technologies
Natural and artificial clones of plants – Download PDF
Animal cloning – Download PDF
Biotechnology and batch cultures – Download PDF
Industrial enzymes – Download PDF
Sanger sequencing and the polymerase chain reaction – Download PDF
Genetic engineering – Download PDF
Gene therapy – Download PDF
Ecosystems and sustainability
Ecosystems – Download PDF
Energy transfer – Download PDF
Succession – Download PDF
Nitrogen cycle – Download PDF
Populations – Download PDF
Competition – Download PDF
Conservation – Download PDF
Responding to the environment
The nervous system – Download PDF
Muscle action – Download PDF
Animal behaviour – Download PDF
Primate behaviour – Download PDF
Dopamine and the DRD4 gene – Download PDF
Plant responses – Download PDF
Commercial uses of plant hormones – Download PDF