Home Biology Photosynthesis in Higher Plants Skill Builder Sequence the following steps in the correct …
Biology Photosynthesis in Higher Plants Skill Builder Single Correct MCQ
Published on: August 12, 2026

Sequence the following steps in the correct order as they occur in cyclic photophosphorylation:

A
PS I absorbs light
- - - -
B
Electron returns to photosystem I
- -
C
Proton gradient generates ATP
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D
Electron are excited and released from PS I Options: - - - -

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First, photosystem I absorbs light , energizing electrons that are then excited and released from PS I . This movement helps to generate a proton gradient used for ATP synthesis , after which the electron returns to photosystem I .

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