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Biology · Edexcel 4BI1 · Biology Paper 2 · regional · January 2021

Edexcel IGCSE Biology Biology Paper 2 January 2021 examiner report (4BI1/2BR)

1h 15m 70 marks

Examiner report

  1. Q1 - 16 marks - Blood, Monohybrid inheritance, Probability and ratios in genetic crosses, Protein synthesis, The specific immune response
  2. Q2 - 11 marks - Transpiration
  3. Q3 - 7 marks - The menstrual cycle
  4. Q4 - 11 marks - Mineral ions in plants, The nitrogen cycle
  5. Q5 - 10 marks - Cloning mammals
  6. Q6 - 7 marks - Energy in ecosystems, Pyramids of number, biomass and energy
  7. Q7 - 8 marks - Osmoregulation, The kidney and the urinary system