OCR A2 Biology Topical 2021-20 Download Past Papers from OCR site here Component 1 Cell division, cell diversity and cellular organisationCell StructureCommunication and homeostasis EnzymesExchange surfacesExcretion as an example of homeostatic controlHormonal communicationNeuronal communication PhotosynthesisPlant and animal responsesPractical SkillsRespirationTransport in animals Transport in plants Component 2 BiodiversityBiological MoleculesCell division, cell diversity and cellular organisationCell Structure Classification and evolutionCloning and biotechnology Communicable diseases, disease prevention and the immune systemEcosystems Manipulating genomes Nucleotides and Nucleic acids Patterns of inheritancePopulations and sustainability2 Practical Skills Topical Solutions coming soon
