A GCSE biology study guide walks through topics from cell biology to ecology, plus required practicals your school completes. Pair any guide with past papers — examiners reward precise definitions and data skills.

Hub: GCSE study guides · Biology past papers · AQA biology command words · Biology GCSE questions hub.

Topic checklist (AQA-style structure)

Topic	Guide + recall
Cell biology	Diagrams — cell, diffusion
Organisation	Digestion, heart, blood
Infection & response	Immunity, vaccination
Bioenergetics	Photosynthesis, respiration
Homeostasis	Hormones, nervous system
Inheritance	Genetics, evolution
Ecology	Food webs, biodiversity

Required practicals

Your study guide should reference RP activities — exam questions often test method, variables, and graphs. See required practicals questions.

Triple vs Trilogy

Path	Guide
Separate Biology	Full biology guide
Combined Science Trilogy	Combined science study guide — narrower depth

Frequently asked questions

Foundation vs Higher biology guide?

Match tier — Foundation questions vs Higher.

CGP vs school guide?

Use school spec first; CGP for extra recall.

6-mark questions?

Extended response guide.

IGCSE biology notes?

IGCSE biology notes hub — not for UK GCSE codes.

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