Combined Science (B) J260,05 Higher November 2021, OCR GCSE Past Papers with Mark Schemes

This biology exam examines topics including cellular respiration, genetic inheritance, and the role of hormones in homeostasis. Key sections cover cardiovascular risks from smoking, plant and root hair cell adaptations, and the carbon cycle′s ecological impact. It explores biodiversity in ecosystems, fossil evidence supporting evolution, and diabetes management. Practical skills are tested through data analysis and experiments on respiration and photosynthesis. The paper emphasizes critical thinking, scientific inquiry, and real-world applications, integrating human health, environmental issues, and molecular biology to reinforce understanding of core biological principles.