Edexcel IGCSE Biology Biology Paper 2 June 2022 examiner report (4BI1/2B)
Examiner report
- Q1 - 16 marks - Genetic engineering, Micropropagation, Osmosis, Photosynthesis, The carbon cycle, The greenhouse effect and climate change, Transport in and out of cells
- Q2 - 7 marks - The nitrogen cycle
- Q3 - 14 marks - Classification, Eukaryotic and prokaryotic cells, Gas exchange, Photosynthesis
- Q4 - 10 marks - Osmoregulation, The kidney and the urinary system, Ultrafiltration and selective reabsorption
- Q5 - 11 marks - Enzyme action, Factors affecting enzyme activity, Food tests
- Q6 - 12 marks - Blood, Protein synthesis
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