A Level Biology OCR (H420)
2. Foundations in Biology
2.1 Cell structure
Cell structure
Carbohydrates and fats
Proteins and chemical tests
Nucleotides and nucleic acids
Enzymes
Biological membranes
Cell division, cell diversity and cell organisation
2.1 Exam questions
3. Exchange and transport
3.1 Exchange surfaces
Exchange surfaces
Transport in plants
3.1 Exam questions
4. Biodiversity, evolution and disease
4.1 Communicable diseases, disease prevention and the immune system
Communicable diseases, disease prevention and the immune system
4.2 Biodiversity
Biodiversity
Classification and evolution
4.2 Exam questions
5. Communication, homeostasis and energy
5.1 Communication and homeostasis
Homeostasis and excretion
Neuronal communication
Hormonal communication
Plant and animal responses
5.1 Exam questions
5.2 Energy for biological processes
Photosynthesis
Respiration
5.2 Exam questions
6. Genetics, evolution and ecosystems
6.1 Genetics and evolution
Cellular control
Patterns of inheritance
Manipulating genomes
6.1 Exam questions
6.2 Cloning and biotechnology
Cloning and biotechnology
6.3 Ecosystems
Ecosystems
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