- CB1Key concepts in biology — cells, DNA, transport (microscopy, eukaryotes vs prokaryotes, mitosis, stem cells, diffusion/osmosis/active transport)
- CB2Cells and control — DNA structure, mitosis, cell division, stem cells
- CB3Genetics — Mendelian inheritance, genetic disease, sex determination, variation, evolution
- CB4Natural selection and genetic modification — Darwin, evidence for evolution, fossils, classification, biotechnology
- CB5Health, disease and the development of medicines — communicable + non-communicable, immune system, vaccines, antibiotics
- CB6Plant structures and functions — photosynthesis, transpiration, plant hormones, nutrition
- CB7Animal coordination, control and homeostasis — hormones, menstrual cycle, blood glucose, thermoregulation, osmoregulation
- CB8Exchange and transport in animals — circulatory system, respiration (aerobic + anaerobic), gas exchange
- CB9Ecosystems and material cycles — carbon cycle, water cycle, nitrogen cycle, biodiversity, food security