Combined Science (B) J260,05 Higher June 2019, OCR GCSE Past Papers with Mark Schemes

This biology exam covers key concepts such as cellular respiration, enzyme activity, and food webs, integrating data analysis and experimental design. Topics include the effects of hydrogen peroxide concentration on enzyme reactions, sustainable fishing practices, pathogen transmission, and genetic inheritance. The paper emphasizes critical thinking through calculations, graph interpretations, and problem-solving, while also exploring human and ecological biology. Additional focus areas include the nervous system, plant translocation, and applications of biochemistry in understanding diseases like Huntington′s and Sickle Cell Disease, showcasing the interconnectedness of biological systems.