Combined Science (B) J260,05 Higher June 2023, OCR GCSE Past Papers with Mark Schemes

This biology exam paper focuses on key topics including genetics, hormonal regulation, ecological systems, and plant physiology. It covers human chromosomal inheritance, the role of insulin in regulating blood sugar, and the ecosystem′s biotic and abiotic components. Other sections analyze pathogen-induced plant diseases, circulatory system functions, and cancer′s cellular impacts. Practical applications include calculating percentages, graphing trends, and testing hypotheses related to photosynthesis and water transport in plants. Total marks: 95, emphasizing analytical, practical, and theoretical biological understanding.