Combined Science (A) J250,07 Higher June 2019, OCR GCSE Past Papers with Mark Schemes

The June 2019 OCR Science GCSE Paper 7 covers core biology topics, emphasizing practical applications and theoretical knowledge. Key areas include osmosis, pathways of oxygen, and specialized plant and bacterial cells. It evaluates understanding of physiological processes like photosynthesis, the menstrual cycle, and hormonal regulation. Graph-based and experimental data interpretation, alongside calculations involving magnification and ratios, are highlighted. Students also analyze enzyme activity, feedback mechanisms, and transport in plants. The paper integrates scientific reasoning with practical investigation methodologies. Keywords: GCSE Biology, plant physiology, human physiology, photosynthesis, experimental analysis, hormonal feedback, enzymes.