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Biology · Edexcel 4BI1 · Biology Paper 1 · November 2020

Edexcel IGCSE Biology Biology Paper 1 November 2020 examiner report (4BI1/1B)

2h 110 marks

Examiner report

  1. Q1 - 8 marks - Classification, Genetic variants and mutation, Natural selection
  2. Q2 - 8 marks - Pollination and fertilisation in plants, Sexual and asexual reproduction
  3. Q3 - 7 marks - Cell structure
  4. Q4 - 13 marks - Abiotic and biotic factors, Energy in ecosystems, Pyramids of number, biomass and energy, The greenhouse effect and climate change
  5. Q5 - 9 marks - Genetic engineering, Increasing crop yield
  6. Q6 - 13 marks - Respiration
  7. Q7 - 10 marks - Diet and nutrition, Factors affecting enzyme activity, Food production using micro-organisms, Food tests, The specific immune response
  8. Q8 - 13 marks - Genetic variants and mutation, Monohybrid inheritance, Variation
  9. Q9 - 13 marks - Increasing crop yield
  10. Q10 - 10 marks - The reflex arc
  11. Q11 - 6 marks