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Cambridge · O Level · Biology

October/November 2021 — Paper 2 · Variant 1.

28 structured questions · 90 marks

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The mark scheme comes with the Biology course.

Topics covered

  • Coordination and control
  • Photosynthesis
  • Temperature control
  • Inheritance
  • Excretion
  • Biological molecules
  • Energy flow
  • Human gas exchange
  • Uptake and transport of water and ions
  • Mineral nutrition
  • Asexual and sexual reproduction
  • Homeostasis
  • Effects of humans on ecosystems
  • Enzyme action
  • Nutrient cycles
  • Ecosystems and biodiversity

Questions in this paper

  • Q1bHuman gas exchange3 marks
  • Q1aHuman gas exchange3 marksincludes a figure
  • Q2c(i)Photosynthesis2 marksincludes a figure
  • Q2c(ii)Photosynthesis1 marks
  • Q2b(ii)Photosynthesis1 marks
  • Q2aPhotosynthesis3 marks
  • Q2b(i)Photosynthesis3 marks
  • Q3bExcretion1 marks
  • Q3a(ii)Temperature control4 marks
  • Q3c(i)Excretion4 marks
  • Q3a(i)Homeostasis2 marks
  • Q3c(ii)Excretion3 marks
  • Q4b(i)Biological molecules1 marks
  • Q4a(i)Energy flow2 marks
  • Q4b(ii)Effects of humans on ecosystems2 marks
  • Q4a(iii)Nutrient cycles3 marks
  • Q4a(ii)Ecosystems and biodiversity3 marks
  • Q5cCoordination and control3 marks
  • Q5aCoordination and control4 marksincludes a figure
  • Q5bCoordination and control2 marks
  • Q6aEnzyme action5 marks
  • Q6bBiological molecules5 marks
  • Q7bInheritance4 marks
  • Q7aInheritance6 marks
  • Q8bMineral nutrition4 marks
  • Q8aUptake and transport of water and ions6 marks
  • Q9bAsexual and sexual reproduction4 marks
  • Q9aAsexual and sexual reproduction6 marks

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