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

Photosynthesis as an energy transfer process — practice question

Paper chromatography is a method that can be used to separate and identify a range of chloroplast pigments.
(a)[3]

Describe how the outcomes of paper chromatography can be used to identify chloroplast pigments.

(b)[3]

Carotene and xanthophyll are chloroplast pigments.\n\nDescribe the function of these pigments in photosynthesis.

(c)[7]

The light-dependent stage of photosynthesis makes ATP and reduced NADP, and these are used in the light-independent stage.\n\nDescribe the light-independent stage of photosynthesis.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Calculate the $R_f$ values.” …

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