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Brainlag

GCSE Biology revision

Every topic in the course and where it sits in each board's specification. Choose your board for its own topic list, official links and summer 2027 exam dates.

Choose your exam board

AQA 8461Edexcel 1BI0OCR J247

Also mapped

Eduqas GCSE Biology (C400)Cambridge IGCSE Biology (0610)National 5 Biology (C807 75)

Taking Combined Science? Its papers are on the exam timetable page. Exam timetables

Topics

  1. Cell biology

    Cell structure and microscopyDiffusion, osmosis and active transportThe cell cycle, mitosis and stem cellsCell biology: lessons and questions

  2. Organisation: tissues, organs, digestion and circulation

    Enzymes and digestionFood tests and the enzyme activity practicalOrganisation: tissues, organs, digestion and circulation: lessons and questions

  3. Infection and response

    Defences, the immune system and vaccinationPathogens and how disease spreadsInfection and response: lessons and questions

  4. Bioenergetics: photosynthesis and respiration

    Photosynthesis and limiting factorsBioenergetics: photosynthesis and respiration: lessons and questions

  5. Homeostasis and response

    Homeostasis, the nervous system and reflexesHomeostasis and response: lessons and questions

  6. Inheritance, variation and evolution

    Genetic crosses, family trees and sex determinationReproduction, meiosis and DNAInheritance, variation and evolution: lessons and questions

  7. Ecology

    Sampling with quadrats, transects and capture-recaptureEcology: lessons and questions

  8. Required practicals and maths skills

Specification references

TopicAQAEdexcelOCR
Cell biology 4.1 (8461); 4.1 (8464)Topics 1 and 2B1 and B2
Organisation: tissues, organs, digestion and circulation 4.2 (8461); 4.2 (8464)Topics 2 and 8B2 and B3
Infection and response 4.3 (8461); 4.3 (8464)Topic 5B5
Bioenergetics: photosynthesis and respiration 4.4 (8461); 4.4 (8464)Topics 6 and 8B1.3 and B1.4
Homeostasis and response 4.5 (8461); 4.5 (8464)Topic 7B3
Inheritance, variation and evolution 4.6 (8461); 4.6 (8464)Topics 3 and 4B5 and B6
Ecology 4.7 (8461); 4.7 (8464)Topic 9B4.2 and B7
Required practicals and maths skills required practicals and maths requirements (8461); biology required practicals (8464)core practicalspractical activity groups and maths skills

Brainlag is not affiliated with or endorsed by any exam board. Specification codes and references are only here to help you find your topics.