Herbicide that blocks electron transport from PS−II to PS−I by inhibiting electron flow between plastoquinone → cytochrome is
A
DCMU.
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B
Paraquat.
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C
DCPIP.
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D
None of these.
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Solution
The correct option is D DCMU. DCMU is selective herbicide that acts as a potent inhibitor of PS−II. Paraquat inhibits PS−I by producing super oxides. DCPIP is a dye use to measure rate of photosynthesis.