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

Photosynthesis as an energy transfer process — practice question

Photosynthesis takes place in chloroplasts. Fig. 1.1 illustrates several structural features of a chloroplast together with some of the processes occurring inside it.
(a(i))[1]

Identify the structures marked A in Fig. 1.1.

(a(ii))[4]

Explain how the structure and appearance of the granum, together with the parts labelled A, are connected to their function.

(b(i))[1]

Identify the metabolic pathway marked cycle C in Fig. 1.1.

(b(ii))[2]

Explain why pathway C is called a cycle.

(c(i))[2]

Identify the photosynthesis products labelled B and D in Fig. 1.1.

(c(ii))[3]

Suggest and explain why glucose and the product labelled B in Fig. 1.1 are important to ecosystems.

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