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In photosystem-I, the first electron acc...

In photosystem-I, the first electron acceptor is

A

cytochrome

B

plastocyanin

C

an iron-sulphur protein

D

ferredoxin

Text Solution

Verified by Experts

The correct Answer is:
C
In photosystem-I, the primary electron acceptor is probable a Fe-S protein. The reduced primary acceptor transfers the electrons to secondary electron acceptor (most probable `P_(430)`). The sequence of electron transfer is as follows:
`underset((chl" "-a^(+)))(P_(700))overset(e^(-))tounderset(("Phyloquinone"))(A_(1))overset(e^(-))tounderset(("Fe-S protein"))(A_(2))overset(e^(-))tounderset((P_(430)))(A_(3))`
The reduced `P_(430)` passess its electrons to ferredoxin (Fd) present at outer surface of thylakoid membrane.
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