Biology study guides

A deep-dive CCEA A-Level Biology guide to the Cells, Viruses and Reproduction module. Covers cell ultrastructure and the fluid-mosaic membrane, transport across membranes, viruses and HIV, cell division by mitosis and meiosis, and gas exchange and transport, with the structure-and-function links CCEA examines.

A deep-dive CCEA A-Level Biology guide to the Genetics, Evolution and Ecosystems module. Covers inheritance and genetic diagrams, gene technology and DNA profiling, natural selection and Hardy-Weinberg, ecosystems and conservation, and immunity, with the calculations and explanations CCEA examines.

A deep-dive CCEA A-Level Biology guide to the Molecules and Enzymes module. Covers carbohydrates, lipids and proteins, the dipolar nature of water and inorganic ions, enzymes and the induced-fit model, and nucleic acids, DNA replication and ATP, with the structure-and-function links CCEA examines.

A deep-dive CCEA A-Level Biology guide to the Physiology, Coordination and Control module. Covers homeostasis and the kidney, the nervous system, hormonal control of blood glucose, photosynthesis and respiration, and plant coordination, with the negative-feedback and process detail CCEA examines.