In photosystem I,the first electron acceptor | vedclass

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(A) : In the light reaction of photosynthesis,two types of photosystems are involved. $PS-I$ consists of a large amount of chlorophyll-$a$ and a very

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an iron-sulphur protein

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(A) : In the light reaction of photosynthesis,two types of photosystems are involved. $PS-I$ consists of a large amount of chlorophyll-$a$ and a very small quantity of chlorophyll-$b$. These pigments absorb light energy and transfer it to the reaction centre,$P_{700}$.After absorbing an adequate amount of light energy,an electron gets excited from the $P_{700}$ molecule and moves to an iron-sulphur protein complex,designated as $A$ $(Fe-S)$.It gets reduced after accepting electrons. It later transfers these electrons to ferredoxin and gets oxidized again.

In photosystem $I$,the first electron acceptor is

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