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Cambridge · O Level · Biology

October/November 2020 — Paper 2 · Variant 2.

32 structured questions · 90 marks

Download question paper (PDF)Mark scheme — for enrolled students

The mark scheme comes with the Biology course.

Topics covered

  • Energy flow
  • Enzyme action
  • Mammalian nervous system
  • Genetic modification
  • Respiration
  • Urinary system
  • Variation
  • Absorption and assimilation
  • Excretion
  • Mineral nutrition
  • Sexual reproduction in plants
  • Inheritance
  • Temperature control
  • Photosynthesis
  • Selection
  • Homeostasis
  • Active transport
  • Sexual reproduction in humans
  • Enzymes
  • Human digestive system
  • Disease
  • Specialised cells, tissues and organs

Questions in this paper

  • Q1a(i)Sexual reproduction in plants1 marksincludes a figure
  • Q1bSexual reproduction in plants6 marks
  • Q1a(ii)Enzyme action3 marks
  • Q2c(i)Energy flow1 marks
  • Q2b(ii)Variation1 marks
  • Q2c(ii)Energy flow1 marks
  • Q2b(i)Inheritance1 marks
  • Q2aMammalian nervous system4 marks
  • Q2c(iii)Selection2 marks
  • Q3bGenetic modification3 marks
  • Q3a(i)Enzymes2 marksincludes a figure
  • Q3a(ii)Enzyme action4 marks
  • Q4b(i)Respiration4 marks
  • Q4c(i)Mineral nutrition1 marks
  • Q4c(ii)Mineral nutrition4 marks
  • Q4aPhotosynthesis2 marksincludes a figure
  • Q4b(iii)Active transport1 marks
  • Q4b(ii)Specialised cells, tissues and organs1 marks
  • Q5bUrinary system2 marks
  • Q5a(ii)Absorption and assimilation1 marks
  • Q5a(iii)Absorption and assimilation3 marks
  • Q5a(i)Human digestive system2 marksincludes a figure
  • Q6aTemperature control7 marksincludes a figure
  • Q6bHomeostasis3 marks
  • Q7b(ii)Urinary system2 marks
  • Q7aExcretion3 marks
  • Q7b(i)Urinary system5 marksincludes a figure
  • Q8aMammalian nervous system5 marks
  • Q8cMammalian nervous system3 marks
  • Q8bMammalian nervous system2 marks
  • Q9bDisease5 marks
  • Q9aSexual reproduction in humans5 marks

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