Edexcel IGCSE Biology Biology Paper 1 June 2024 examiner report (4BI1/1BR)
Examiner report
- Q1 - 7 marks - Cell structure, Osmosis, Transport in and out of cells
- Q2 - 8 marks - Pollination and fertilisation in plants
- Q3 - 14 marks - Gas exchange, Ventilation and the thorax
- Q4 - 13 marks - Digestion, Factors affecting enzyme activity, Food tests
- Q5 - 11 marks - Classification, Energy in ecosystems, Pyramids of number, biomass and energy
- Q6 - 13 marks - Homeostasis, The reflex arc
- Q7 - 13 marks - Blood vessels, Coronary heart disease, The heart and circulation
- Q8 - 14 marks - Food production using micro-organisms, Monohybrid inheritance, Natural selection, Probability and ratios in genetic crosses
- Q9 - 11 marks - Genetic engineering, Increasing crop yield, Limiting factors in photosynthesis
- Q10 - 6 marks
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