Combined Science (A) J250,08 Higher June 2018, OCR GCSE Past Papers with Mark Schemes

The GCSE Combined Science (Biology) Paper 8, June 2018, examines advanced topics such as selective breeding, genetic engineering, and cardiovascular disease. It assesses knowledge of the nitrogen cycle, viral structures, and the role of hormones like insulin and glucagon in blood sugar regulation. Questions require understanding of disease interactions, drug trials, and photosynthesis in mitigating greenhouse gases. Applied problems include calculating population sizes, interpreting scientific diagrams, and evaluating surgical treatments for heart conditions. The paper emphasizes critical thinking, scientific literacy, and data analysis.