Basic biochemistry and cell organisationBiodiversity and physiology of body systemsBiological moleculesCellsContinuity of lifeControl, coordination and homeostasisEnergy flow and ecosystemsEnergy for lifeEnergy transfers in and between organismsEvolution, speciation and biodiversityExchange, transport and classificationGenetic information, variation and relationships between organismsGenetics, populations, evolution and ecosystemsGenetics, variation and gene technologyHealth, infection and immunologyModule 2 Foundations in biologyModule 3 Exchange and transportModule 4 Biodiversity, evolution and diseaseModule 5 Communication, homeostasis and energyModule 6 Genetics, evolution and ecosystemsOrganisms exchange substances with their environmentOrganisms respond to changes in their internal and external environmentsRequirements for lifeRespiration and photosynthesisThe control of gene expression