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Biology A - H420
13 sections available · 35 chapters available
Free Biology A - H420 study notes for Cambridge OCR A Level students. Each chapter breaks down a key concept with examples and practice prompts you can turn into AI drills in the thinka app.
Foundations in biology
Exchange and transport
Module 1 – Development of practical skills in biology
Planning experiments
Implementing and recording
Analysis of experimental results
Evaluation of results and procedures
Apparatus and techniques (PAG1–PAG12)
Biodiversity, evolution and disease
Module 2 – Foundations in biology
Cell structure
Biological molecules
Nucleotides and nucleic acids
Enzymes
Biological membranes
Cell division, cell diversity and cellular organisation
Module 3 – Exchange and transport
Exchange surfaces
Transport in animals
Transport in plants
Communication, homeostasis and energy
Module 4 – Biodiversity, evolution and disease
Communicable diseases, disease prevention and the immune system
Biodiversity
Classification and evolution
Genetics, evolution and ecosystems
Module 5 – Communication, homeostasis and energy
Communication and homeostasis
Excretion as an example of homeostatic control
Neuronal communication
Hormonal communication
Plant and animal responses
Photosynthesis
Respiration
Development of practical skills in biology
Module 6 – Genetics, evolution and ecosystems
Cellular control
Patterns of inheritance
Manipulating genomes
Cloning and biotechnology
Ecosystems
Populations and sustainability
Mathematical skills for biology
Units, standard form and significant figures
Magnification, scale and surface area to volume
Rates, gradients and graph interpretation
Statistical tests and measures of dispersion
Uncertainty, precision and accuracy
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