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Photosynthesis as an energy transfer process: CAIE A‑Level Biology questions

Every CAIE A-Level Biology exam question on 13.1 Photosynthesis as an energy transfer process, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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240 questions

  1. Q5(a)(i)

    June 2024 · Paper 4

    2 marks13.1 Photosynthesis as an energy transfer process
    The whole paper ↗
    June 2024 Paper 4, question 5(a)(i): A and B are areas of the chloroplast. Name areas A and B. A B [2]

  2. Q5(a)(ii)

    June 2024 · Paper 4

    2 marks13.1 Photosynthesis as an energy transfer process
    The whole paper ↗
    June 2024 Paper 4, question 5(a)(ii): The group of proteins labelled C, PSI and the protein labelled E are involved in a specific biochemical process during the light‑dependent stage of photosynthes

  3. Q5(a)(iii)

    June 2024 · Paper 4

    3 marks13.1 Photosynthesis as an energy transfer process
    The whole paper ↗
    June 2024 Paper 4, question 5(a)(iii): Product D is used during the Calvin cycle. Identify product D and describe its specific role in the Calvin cycle. [3]

  4. Q3(b)

    Specimen · Paper 4

    3 marks13.1 Photosynthesis as an energy transfer process
    The whole paper ↗
    Specimen Paper 4, question 3(b): The algae that live within the cells of coral polyps have five different chloroplast pigments. Table 3.1 shows the light wavelengths at which each algal chlorop

  5. Q3(c)

    Specimen · Paper 4

    4 marks13.1 Photosynthesis as an energy transfer process
    The whole paper ↗
    Specimen Paper 4, question 3(c): Photosynthesis in the algae living within the cells of coral polyps is the same as photosynthesis in plant cells. Outline the process of cyclic photophosphoryla
All 5 questions on Photosynthesis as an energy transfer process, as a list
  1. June 2024, Paper 4, Q5(a)(i) (2 marks): A and B are areas of the chloroplast. Name areas A and B. A B [2]
  2. June 2024, Paper 4, Q5(a)(ii) (2 marks): The group of proteins labelled C, PSI and the protein labelled E are involved in a specific biochemical process during the light‑dependent stage of photosynthes
  3. June 2024, Paper 4, Q5(a)(iii) (3 marks): Product D is used during the Calvin cycle. Identify product D and describe its specific role in the Calvin cycle. [3]
  4. Specimen, Paper 4, Q3(b) (3 marks): The algae that live within the cells of coral polyps have five different chloroplast pigments. Table 3.1 shows the light wavelengths at which each algal chlorop
  5. Specimen, Paper 4, Q3(c) (4 marks): Photosynthesis in the algae living within the cells of coral polyps is the same as photosynthesis in plant cells. Outline the process of cyclic photophosphoryla

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