Edexcel IGCSE Biology Biology Paper 1 June 2025 mark scheme 4BI1/1BR
Practise the past exam questions by topic
Classification17 Qs
Sexual & asexual reproduction7 Qs
Cell structure14 Qs
Effects of smoking7 Qs
Ventilation & the thorax15 Qs
Eukaryotic & prokaryotic cells6 Qs
Respiration10 Qs
Diet & nutrition21 Qs
Digestion13 Qs
Human reproductive system12 Qs
Menstrual cycle9 Qs
Osmosis14 Qs
Rate of diffusion7 Qs
Ecosystems5 Qs
Energy in ecosystems25 Qs
Sampling & fieldwork12 Qs
Greenhouse effect & climate change13 Qs
Genetic engineering13 Qs
Increasing crop yield16 Qs
Monohybrid inheritance23 Qs
Natural selection13 Qs
Probability & ratios in genetic crosses20 Qs
Sex determination10 Qs
Homeostasis7 Qs
+20 more
10 questions
- Q1 - 8 marks - Classification, Sexual and asexual reproduction
- Q2 - 10 marks - Cell structure, Effects of smoking, Ventilation and the thorax
- Q3 - 9 marks - Cell structure, Eukaryotic and prokaryotic cells, Respiration
- Q4 - 11 marks - Diet and nutrition, Digestion
- Q5 - 12 marks - The human reproductive system, The menstrual cycle
- Q6 - 14 marks - Osmosis, Rate of diffusion
- Q7 - 14 marks - Ecosystems, Energy in ecosystems, Sampling and fieldwork, The greenhouse effect and climate change
- Q8 - 14 marks - Genetic engineering, Increasing crop yield
- Q9 - 12 marks - Monohybrid inheritance, Natural selection, Probability and ratios in genetic crosses, Sex determination
- Q10 - 6 marks - Homeostasis
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