1. PS-II to Cytb ₆ f complex 2. Cytb ₆ f complex to PS-I 3. PS-I to NADP ^+ 4. PS-I to ATP synthase

Topic: Light reactions, cyclic and non-cyclic photophosphorylation, chemiosmosis· Plant Physiology

In light reaction, plastoquinone facilitates the transfer of electrons from :

1. PS-II to Cytb\(_6\)f complex

2. Cytb\(_6\)f complex to PS-I

3. PS-I to NADP\(^+\)

4. PS-I to ATP synthase

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Answer: 1. PS-II to Cytb\(_6\)f complex

In the Z-scheme, electrons from PS II go to plastoquinone (PQ), then to the Cyt b6f complex, then plastocyanin, then PS I.

So plastoquinone carries electrons from PS II to Cyt b6f. The Cyt b6f to PS I step is done by plastocyanin, and PS I to NADP+ by ferredoxin and NADP reductase.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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In light reaction, plastoquinone facilitates the transfer of electrons from :

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