A Level Biology revision for AQA: free notes across 8 topics, each split into subtopics and lessons.
8 topics and 139 lessons for A Level AQA Biology. Each topic lists its subtopics so you can go straight to the part you need.
8
Topics
139
Lessons
Revise Right Mocks '26
AQA A-Level Biology mock draft, 26–31 Oct. Draft coverage: Biology 7402/1 · Paper 1. Reviewed for an original-practice sitting; check student availability before registering. Marking and results will follow later, after separate approval. Eligible new accounts receive a five-day Pro trial when signup email verification completes. Previous trials keep their original expiry. After expiry, new papers need Pro unless you have an explicitly confirmed free sitting offer for this event. That offer adds no Pro time or AI learning. Saved attempts and released results remain readable. No card or automatic charge.
Every topic in this course, with the subtopics inside each one.
Topics and what they cover
Biological molecules: 24 lessons: Monomers and polymers, Carbohydrates, Lipids, Proteins, Nucleic acids are important information-carrying molecules, ATP
Cells: 18 lessons: Cell structure, All cells arise from other cells, Transport across cell membranes, Cell recognition and the immune system
Genetic information, variation and relationships between organisms: 19 lessons: DNA, genes and chromosomes, DNA and protein synthesis, Genetic diversity can arise as a result of mutation or during meiosis, Genetic diversity and adaptation, Species and taxonomy, Biodiversity within a community
Organisms respond to changes in their internal and external environments (A-level only): 22 lessons: Stimuli, both internal and external, are detected and lead to a response (A-level only), Nervous coordination (A-level only), Skeletal muscles are stimulated to contract by nerves and act as effectors (A-level only), Homeostasis is the maintenance of a stable internal environment (A-level only)
The control of gene expression (A-level only): 20 lessons: Alteration of the sequence of bases in DNA can alter the structure of proteins (A-level only), Gene expression is controlled by a number of features (A-level only), Using genome projects (A-level only), Gene technologies allow the study and alteration of gene function allowing a better understanding of organism function and the design of new...
Other courses and past papers
Not your exam board? The Biology page lists every course we cover.
Check the level, exam board with your teacher, or look at the front of a past paper you have been given. Content differs between boards, so it is worth getting this right first.
Where should I start?
Start with the topic you find hardest, or the one your next test is on. Read a lesson, then close it and write down what you remember before moving on.