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Cambridge · O Level · Biology

October/November 2021 — Paper 2 · Variant 2.

28 structured questions · 90 marks

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Topics covered

  • Disease
  • Asexual and sexual reproduction
  • Diet
  • Sexual reproduction in humans
  • Energy flow
  • Effects of humans on ecosystems
  • Sexual reproduction in plants
  • Enzyme action
  • Uptake and transport of water and ions
  • Leaf structure
  • Conservation
  • Circulatory system
  • Effects of temperature and pH
  • Blood
  • Heart
  • Photosynthesis

Questions in this paper

  • Q1a(ii)Photosynthesis4 marks
  • Q1b(ii)Energy flow3 marks
  • Q1b(i)Energy flow2 marksincludes a figure
  • Q1a(i)Leaf structure3 marksincludes a figure
  • Q2a(ii)Circulatory system1 marks
  • Q2b(i)Blood1 marksincludes a figure
  • Q2b(ii)Blood5 marks
  • Q2a(i)Heart2 marksincludes a figure
  • Q3bDiet4 marks
  • Q3a(i)Diet3 marks
  • Q3a(ii)Diet2 marks
  • Q4a(i)Sexual reproduction in humans1 marksincludes a figure
  • Q4a(ii)Sexual reproduction in humans5 marks
  • Q4bSexual reproduction in humans3 marksincludes a figure
  • Q5aEnzyme action2 marks
  • Q5b(i)Effects of temperature and pH3 marksincludes a figure
  • Q5b(ii)Effects of temperature and pH2 marks
  • Q5b(iii)Effects of humans on ecosystems4 marks
  • Q6aSexual reproduction in plants6 marksincludes a figure
  • Q6b(i)Sexual reproduction in plants2 marks
  • Q6b(ii)Sexual reproduction in plants2 marks
  • Q7aEffects of humans on ecosystems2 marks
  • Q7bEffects of humans on ecosystems5 marks
  • Q7cConservation3 marks
  • Q8aDisease3 marks
  • Q8bDisease7 marks
  • Q9aAsexual and sexual reproduction3 marks
  • Q9bUptake and transport of water and ions7 marks

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