Biology study guides

A deep-dive OCR A-Level Biology guide to Module 2 Foundations in biology. Covers cell structure and microscopy, biological molecules and their tests, enzymes, DNA replication and the genetic code, the cell cycle and mitosis, and meiosis, stem cells and cell organisation, with the exam patterns OCR repeats.

A deep-dive OCR A-Level Biology guide to Module 3 Exchange and transport. Covers surface-area-to-volume ratio and exchange surfaces, gas exchange in mammals, fish and insects, the mammalian heart and cardiac cycle, blood vessels and tissue fluid, oxygen transport and the dissociation curve, and transport in plants, with the exam patterns OCR repeats.

A deep-dive OCR A-Level Biology guide to Module 4 Biodiversity, evolution and disease. Covers communicable diseases and primary defences, the specific immune response and vaccination, measuring and sampling biodiversity with Simpson's index, classification and the three domains, and evolution by natural selection, with the exam patterns OCR repeats.

A deep-dive OCR A-Level Biology guide to Module 5 Communication, homeostasis and energy. Covers homeostasis and the kidney, neuronal communication, hormonal communication and blood glucose, plant and animal responses, photosynthesis and respiration, with the exam patterns OCR repeats.

A deep-dive OCR A-Level Biology guide to Module 6 Genetics, evolution and ecosystems. Covers cellular control and gene expression, patterns of inheritance and the chi-squared test, populations and the Hardy-Weinberg principle, manipulating genomes, cloning and biotechnology, and ecosystems and sustainability, with the exam patterns OCR repeats.