Question

In photosynthesis, during the operation of PS II, the cited $P680$ is rapidly photoxidised as it passes an electron _____________.

• A. Carotene
• B. Ferridoxin
• C. Phaeophytin
• D. Phycoerythrin

Answer 1

The correct option is A Carotene

During the operation of PS II the electron passes from chlorophyll P680 to ferredoxin (Fd, the primary acceptor), then to pheophytin (Ph), then to complex b₆-f, and then to plastocyanin (Pc), before returning to chlorophyll P680, and then the cycle is repeated.

So the correct answer is option B.