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Byju's Answer
Standard XII
Biology
ETC
DCMU inhibits
Question

DCMU inhibits

A
PS II
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B
PS I
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C
Destroys chloroplast
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D
Inhibits oxidative phosphorylation
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Solution

The correct option is A PS II
DCMU or Dichlorophenyl dimethyl urea inhibits PS II in photosynthetic plants by blocking electron transfer from plastoquinone to cytochrome. DCMU binds to and blocks the site of plastoquinone, thus hinders the path and growth of plants. It is used as herbicide and algicide. It is also used in studying photosynthetic activity.

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