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