Biology study guides

An overview of the cell level systems content (topic B1) in OCR Gateway GCSE Biology A (J247), mapping cell structures, microscopy and magnification, DNA and protein synthesis, enzymes, respiration and photosynthesis, and how they are examined on the first biology paper.

An overview of the community level systems content (topic B4) in OCR Gateway GCSE Biology A (J247), mapping ecosystems and interdependence, food chains and predator-prey cycles, sampling with quadrats and transects, the carbon and water cycles, and the nitrogen cycle and decomposition, and how they are examined on the second biology paper.

An overview of the genes, inheritance and selection content (topic B5) in OCR Gateway GCSE Biology A (J247), mapping reproduction and meiosis, DNA the genome and variation, protein synthesis, genetic inheritance and Punnett squares, natural selection and evolution, and selective breeding and genetic engineering, and how they are examined on the second biology paper.

An overview of the global challenges content (topic B6) in OCR Gateway GCSE Biology A (J247), mapping monitoring and maintaining biodiversity, feeding the human race, communicable disease and pathogens, the immune system and vaccination, non-communicable disease and risk factors, and drug development and testing, and how they are examined on the second biology paper.

An overview of the organism level systems content (topic B3) in OCR Gateway GCSE Biology A (J247), mapping the nervous system, the brain and the eye, the endocrine system, control of blood glucose, hormones in reproduction and plant hormones, and how they are examined on the first biology paper.

An overview of the scaling up content (topic B2) in OCR Gateway GCSE Biology A (J247), mapping the cell cycle and mitosis, stem cells, diffusion, osmosis and active transport, surface area to volume ratio, exchange surfaces, the circulatory system and transport in plants, and how they are examined on the first biology paper.