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Cambridge · O Level · Biology

May/June 2023 — Paper 2 · Variant 2.

29 structured questions · 80 marks

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The mark scheme comes with the Biology course.

Topics covered

  • Effects of humans on ecosystems
  • Photosynthesis
  • Selection
  • Transport in flowering plants
  • DNA
  • Immunity
  • Mammalian nervous system
  • Coordination and response in plants
  • Human gas exchange
  • Respiration
  • Biotechnology
  • Human digestive system
  • Genetic modification
  • Variation

Questions in this paper

  • Q1b(iii)Biotechnology2 marks
  • Q1b(i)Respiration1 marksincludes a figure
  • Q1aHuman gas exchange3 marks
  • Q1b(ii)Respiration3 marks
  • Q2b(ii)Immunity2 marks
  • Q2aHuman digestive system4 marks
  • Q2cImmunity3 marks
  • Q2b(i)Human digestive system1 marks
  • Q3cMammalian nervous system3 marks
  • Q3b(ii)Mammalian nervous system1 marksincludes a figure
  • Q3b(i)Mammalian nervous system1 marksincludes a figure
  • Q3aMammalian nervous system4 marksincludes a figure
  • Q3b(iii)Mammalian nervous system1 marks
  • Q4aEffects of humans on ecosystems5 marks
  • Q4bEffects of humans on ecosystems2 marksincludes a figure
  • Q4c(i)Variation4 marksincludes a figure
  • Q4c(ii)Selection5 marks
  • Q5a(i)Transport in flowering plants2 marksincludes a figure
  • Q5a(iii)Transport in flowering plants2 marks
  • Q5b(i)Coordination and response in plants2 marks
  • Q5a(ii)Transport in flowering plants1 marks
  • Q5b(ii)Coordination and response in plants4 marks
  • Q5a(iv)Transport in flowering plants4 marks
  • Q6b(ii)Photosynthesis1 marks
  • Q6b(iii)Photosynthesis5 marks
  • Q6b(i)Photosynthesis2 marksincludes a figure
  • Q6aPhotosynthesis2 marksincludes a figure
  • Q7bGenetic modification5 marks
  • Q7aDNA5 marks

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