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

Photosynthesis as an energy transfer process — practice question

Photosynthesis is an energy-transfer process that occurs in the chloroplasts of plant cells.
(a(i))[2]

Fig. 3.1 shows a diagram of a chloroplast. Using the letters A, B, C or D, identify the structure that contains genes that code for some of the enzymes used in photosynthesis, and the structure that is the site of synthesis of some of the enzymes used in photosynthesis.

(a(ii))[4]

Explain the ways in which grana are suited to their particular role in photosynthesis.

(b(i))[3]

Describe the pattern of results shown in Fig. 3.2.

(b(ii))[3]

Discuss how the results in Fig. 3.2 support the occurrence of chemiosmosis during photophosphorylation.

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