First year of A-level (AS)
A-level Biology Year 12 revision
Notes, diagrams and exam-style questions for every topic in A-level Biology Year 12, for AQA, OCR A, OCR B, Edexcel and Cambridge. The first part of each topic is free to read here, with practice questions and answers.
- 9 topics
- 65 subtopics
- 2,758 questions
Choose your exam board
Topics
Topic 1Biological moleculesBiological molecules is the chemistry that underpins the whole A-level course. Every cell, enzyme and gene is built from the…8 subtopics · 355 questionsTopic 2CellsCells takes you inside the basic unit of life, in far more detail than at GCSE.10 subtopics · 490 questionsTopic 3Organisms exchange substances with their environmentThis topic is about how organisms exchange substances with their environment, from a single cell to a whole tree.8 subtopics · 370 questionsTopic 4Genetic information, variation and relationships between organismsThis topic links genetic information to variation, evolution and the way we classify life.8 subtopics · 269 questionsTopic 5Prokaryotes, viruses and infectious diseaseThis topic is about the smallest causes of disease: bacteria and viruses, and how plants and animals defend themselves against…6 subtopics · 211 questionsTopic 6Required and core practicalsThis topic brings together the required and core practicals. Practical skills are tested in written exams as well as in the lab…8 subtopics · 397 questionsTopic 7Practical and mathematical skillsPractical and mathematical skills make up a big share of the marks in A-level Biology, across every paper.7 subtopics · 304 questionsTopic 8Reproduction and plant biologyReproduction and plant biology covers how new life begins in flowering plants and in mammals, and how we use plants as materials…6 subtopics · 215 questionsTopic 9Conservation and human impact on biodiversityConservation and human impact on biodiversity asks why the variety of life matters, and what we are doing to it.4 subtopics · 147 questions