The chlorophyll-a molecule of Photosystem-I a | vedclass

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(B) In photosynthesis,the light-harvesting complexes are organized into two distinct photosystems,namely Photosystem-$I$ $(PS-I)$ and Photosystem-$II$

Vedclass · Accepted Answer

$700\,nm, 680\,nm$

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(B) In photosynthesis,the light-harvesting complexes are organized into two distinct photosystems,namely Photosystem-$I$ $(PS-I)$ and Photosystem-$II$ $(PS-II)$.Each photosystem consists of a reaction center surrounded by accessory pigments.In $PS-I$,the reaction center chlorophyll-$a$ has an absorption peak at $700\,nm$ and is therefore called $P700$.In $PS-II$,the reaction center chlorophyll-$a$ has an absorption peak at $680\,nm$ and is therefore called $P680$.Thus,the correct sequence is $700\,nm$ for $PS-I$ and $680\,nm$ for $PS-II$.

The chlorophyll-$a$ molecule of Photosystem-$I$ absorbs light at a wavelength of $.........$ and the chlorophyll-$a$ molecule of Photosystem-$II$ absorbs light at a wavelength of $.........$ for maximum absorption.

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