Biology 9700 · AS & A Level · Photosynthesis as an energy transfer process

Photosynthesis as an energy transfer process — practice question

Answer just one question.
(a)[8]

Describe the structure of photosystems and explain how a photosystem works in cyclic photophosphorylation.

(b)[7]

Explain briefly how reduced NADP is formed during the light-dependent stage and how it is then used in the light-independent stage.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Pigments organised into light-harvesting clusters” …

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