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Cambridge · O Level · Biology

October/November 2023 — Paper 4 · Variant 2.

15 structured questions · 40 marks

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The mark scheme comes with the Biology course.

Topics covered

  • Nuclear division
  • Human gas exchange
  • Heart
  • Temperature control
  • Cell structure and function
  • Coordination and response in plants

Questions in this paper

  • Q1aTemperature control1 marksincludes a figure
  • Q1b(i)Temperature control4 marksincludes a figure
  • Q1cTemperature control6 marks
  • Q1b(ii)Temperature control3 marks
  • Q2b(ii)Human gas exchange2 marks
  • Q2a(iv)Heart2 marks
  • Q2a(iii)Heart2 marks
  • Q2a(ii)Heart4 marks
  • Q2b(i)Heart3 marks
  • Q2a(i)Heart1 marksincludes a figure
  • Q3a(i)Coordination and response in plants2 marksincludes a figure
  • Q3b(ii)Cell structure and function3 marksincludes a figure
  • Q3b(i)Nuclear division4 marksincludes a figure
  • Q3a(iii)Coordination and response in plants2 marks
  • Q3a(ii)Coordination and response in plants1 marks

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