Complete OCR Gateway Science A GCSE Biology (J247) path covering all six topics — B1 Cell-level systems, B2 Scaling up, B3 Organism-level systems, B4 Community-level systems, B5 Genes, inheritance and selection, and B6 Global challenges — plus dedicated exam preparation for the Foundation and Higher tiers.
OCR GCSE Biology — Cell-level Systems
Master Topic B1 of OCR Gateway Science A GCSE Biology (J247): eukaryotic and prokaryotic cells, sub-cellular structures and specialised cells, microscopy and magnification, DNA and the genome, enzymes and the factors affecting them, respiration, and photosynthesis. Worked calculations, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
OCR GCSE Biology — Scaling Up
Master Topic B2 of OCR Gateway Science A GCSE Biology (J247): cell division by mitosis and the cell cycle, cell differentiation and specialised cells, stem cells and their uses, diffusion, osmosis and active transport, surface area to volume ratio and exchange surfaces, the human circulatory system, and transport in plants. Worked calculations, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
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OCR GCSE Biology — Organism-level Systems
Master Topic B3 of OCR Gateway Science A GCSE Biology (J247): the nervous system and neurones, reflex actions and synapses, the brain and the eye, the endocrine system and hormonal control, homeostasis and the control of blood glucose (including diabetes), thermoregulation and the kidney, hormones in human reproduction and contraception, and plant hormones and responses. Worked examples, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
OCR GCSE Biology — Community-level Systems
Master Topic B4 of OCR Gateway Science A GCSE Biology (J247): ecosystems and interdependence, food chains and food webs, competition and adaptation, sampling with quadrats and transects, biodiversity and human impact, and the recycling of materials through the carbon, water and nitrogen cycles, including decomposition and the rate of decay. Worked calculations, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
OCR GCSE Biology — Genes, Inheritance and Selection
Master Topic B5 of OCR Gateway Science A GCSE Biology (J247): sexual and asexual reproduction and meiosis, DNA, genes and the genome, monohybrid inheritance and Punnett squares, inherited disorders and family trees, variation and mutation, evolution by natural selection, the evidence for evolution and classification, and selective breeding and genetic engineering. Worked genetic crosses, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
OCR GCSE Biology — Global Challenges
Master Topic B6 of OCR Gateway Science A GCSE Biology (J247): health and disease, communicable diseases and pathogens, the immune system and the body's defences, vaccination and antibiotics, developing new medicines, non-communicable diseases, feeding the human race, and monitoring and maintaining the environment. Worked calculations, required-practical method steps, exam tips and graded model answers for Foundation and Higher tiers.
OCR GCSE Biology — Exam Preparation
Get exam-ready for OCR Gateway Science A GCSE Biology (J247): understand the two papers and their structure, the assessment objectives and command words, master the required practicals (PAGs), learn to answer 6-mark extended-response questions, build the maths and graph skills biology demands, avoid the most common mistakes, plan your revision, and walk through a full paper. Worked examples, exam tips and graded model answers for Foundation and Higher tiers.