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Cambridge · O Level · Biology

October/November 2022 — Paper 3 · Variant 2.

15 structured questions · 40 marks

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Topics covered

  • Sexual reproduction in plants
  • Enzyme action
  • Effects of temperature and pH
  • Anaerobic respiration
  • Cell structure and function

Questions in this paper

  • Q1cEnzyme action3 marks
  • Q1a(iv)Anaerobic respiration1 marks
  • Q1a(iii)Anaerobic respiration3 marks
  • Q1a(ii)Effects of temperature and pH0 marks
  • Q1bEffects of temperature and pH4 marks
  • Q1a(table)Effects of temperature and pH6 marks
  • Q1a(i)Effects of temperature and pH1 marks
  • Q2a(ii)Sexual reproduction in plants2 marks
  • Q2b(i)Sexual reproduction in plants2 marks
  • Q2a(i)Sexual reproduction in plants5 marks
  • Q2b(ii)Sexual reproduction in plants1 marks
  • Q2a(iii)Sexual reproduction in plants2 marks
  • Q3cCell structure and function2 marks
  • Q3aCell structure and function5 marksincludes a figure
  • Q3bCell structure and function3 marksincludes a figure

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