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Cambridge · O Level · Biology

October/November 2020 — Paper 6 · Variant 1.

19 structured questions · 40 marks

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The mark scheme comes with the Biology course.

Topics covered

  • Effects of temperature and pH
  • Human gas exchange
  • Leaf structure
  • Concept and use of a classification system

Questions in this paper

  • Q1b(iv)Effects of temperature and pH1 marks
  • Q1cEffects of temperature and pH2 marks
  • Q1a(iii)Effects of temperature and pH1 marks
  • Q1b(i)Effects of temperature and pH1 marks
  • Q1a(v)Effects of temperature and pH3 marks
  • Q1a(ii)Effects of temperature and pH1 marks
  • Q1dEffects of temperature and pH5 marks
  • Q1b(ii)Effects of temperature and pH1 marks
  • Q1b(iii)Effects of temperature and pH1 marks
  • Q1a(iv)Effects of temperature and pH1 marks
  • Q1a(i)Effects of temperature and pH3 marks
  • Q2aHuman gas exchange4 marks
  • Q2cHuman gas exchange1 marks
  • Q2bHuman gas exchange2 marks
  • Q2dHuman gas exchange1 marks
  • Q3a(iii)Leaf structure2 marks
  • Q3a(i)Leaf structure5 marksincludes a figure
  • Q3a(ii)Leaf structure3 marks
  • Q3bConcept and use of a classification system2 marks

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