All Biology papers
Cambridge · O Level · Biology
October/November 2023 — Paper 2 · Variant 2.
31 structured questions · 80 marks
Download question paper (PDF)Mark scheme — for enrolled students
The mark scheme comes with the Biology course.
Topics covered
- Energy flow
- Blood vessels
- Effects of temperature and pH
- Biological molecules
- Human gas exchange
- Concept and use of a classification system
- Ecosystems and biodiversity
- Conservation
- Specialised cells, tissues and organs
- Leaf structure
- Nuclear division
- Blood glucose control
- Enzyme action
- Genetic modification
- Cell structure and function
- Selection
- Disease
- Urinary system
- Enzymes
- Biotechnology
Questions in this paper
- Q1c(iii)Concept and use of a classification system2 marks
- Q1c(ii)Specialised cells, tissues and organs2 marksincludes a figure
- Q1bCell structure and function4 marks
- Q1c(iv)Disease4 marks
- Q1a(ii)Disease1 marks
- Q1c(i)Cell structure and function2 marksincludes a figure
- Q1a(i)Disease1 marks
- Q2aEnergy flow4 marksincludes a figure
- Q2b(i)Biological molecules1 marks
- Q2b(iii)Enzyme action2 marks
- Q2b(ii)Energy flow1 marks
- Q3bBlood vessels3 marks
- Q3c(i)Urinary system3 marks
- Q3c(ii)Blood glucose control3 marks
- Q3aBlood vessels3 marksincludes a figure
- Q4a(ii)Human gas exchange4 marks
- Q4b(i)Cell structure and function1 marks
- Q4b(ii)Nuclear division1 marks
- Q4cSelection5 marks
- Q4b(iii)Nuclear division1 marks
- Q4a(i)Ecosystems and biodiversity3 marksincludes a figure
- Q5bEffects of temperature and pH5 marks
- Q5cGenetic modification2 marks
- Q5a(ii)Enzymes1 marks
- Q5a(i)Biotechnology1 marks
- Q6bLeaf structure4 marks
- Q6aLeaf structure6 marksincludes a figure
- Q7a(ii)Ecosystems and biodiversity1 marks
- Q7a(i)Ecosystems and biodiversity2 marks
- Q7a(iii)Ecosystems and biodiversity2 marks
- Q7bConservation5 marks
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