Multiple choice

The correct sequence for flow of electrons from excited P680* (in Photo System II) to P700 (reaction centre of Photo System I) is

  1. P680* → Pheophytin → Plastoquinone → Cytochrome b6-f complex → Plastocyanin → P 700

  2. P680* → Plastoquinone → Pheophytin → Cytochrome b6-f complex → Plastocyanin → P 700

  3. P680* → Pheophytin → Cytochrome b6-f complex → Plastoquinone → Plastocyanin → P 700

  4. P680* → Plastocyanin → Plastoquinone → Cytochrome b6-f complex → Pheophytin → P 700

  5. P680* → Plastoquinone → Pheophytin → Plastocyanin → Cytochrome b6-f complex → P 700
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A Correct answer
Explanation

Correct answer is P680* → Pheophytin → Plastoquinone → Cytochrome b6-f complex → Plastocyanin → P 700.

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