AQA GCSE Biology Past Papers & Mark Schemes

AQA GCSE Biology (specification code 8461) is one of the three separate sciences, available to students studying Triple Science. It is assessed through two written papers, each lasting 1 hour 45 minutes and worth 100 marks. Both papers can be taken at Foundation (grades 1–5) or Higher (grades 4–9) tier. Paper 1 covers topics 1–4 of the specification: Cell Biology, Organisation, Infection and Response, and Bioenergetics. Cell Biology includes cell structure (including required practical work on microscopy), mitosis, diffusion, osmosis, and active transport. Organisation covers the digestive system, food tests, heart and blood vessels, lungs, and plant organisation. Infection and Response examines communicable disease, the immune system, and vaccines. Bioenergetics covers photosynthesis and respiration, including required practicals on both topics. Paper 2 covers topics 5–7: Homeostasis and Response, Inheritance/Variation/Evolution, and Ecology. Homeostasis covers the nervous system, endocrine system (including diabetes and blood glucose regulation), and kidney function. The genetics topic includes DNA structure, genetic inheritance, sex determination, and required practical work on food tests and enzyme activity. Ecology covers communities, levels of organisation, the carbon cycle, and biodiversity. Required practicals are integral to this qualification. Questions about required practical methods, results analysis, and evaluation appear throughout both papers. Students are expected to know the methods, equipment, variables, and safety considerations for all required practicals. There are no controlled assessments or coursework — performance is based entirely on the two written exams.