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

Photosynthesis as an energy transfer process — practice question

Answer only one question.

(a)[8]

Describe the photoactivation of chlorophyll and the part it plays in cyclic photophosphorylation.

(b)[7]

Explain briefly how reduced NADP is formed in 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 located in light-harvesting clusters” …