Assertion : D.C.M.U. is a photosynthetic inhi | vedclass

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Question

(A) $D.C.M.U.$ (Dichlorophenyl dimethyl urea) is a potent herbicide that acts as a photosynthetic inhibitor. It specifically blocks the electron flow

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) $D.C.M.U.$ (Dichlorophenyl dimethyl urea) is a potent herbicide that acts as a photosynthetic inhibitor. It specifically blocks the electron flow from Photosystem $II$ $(PSII)$ to plastoquinone by binding to the $Q_B$ binding site. Because the electron transport chain is blocked,the photolysis of water (which requires a continuous supply of electrons to the oxidized $P_{680}$ reaction center) is also inhibited. Therefore,both the Assertion and the Reason are correct,and the Reason provides a correct explanation for the Assertion.

Assertion : $D.C.M.U.$ is a photosynthetic inhibitor.
Reason : $D.C.M.U.$ inhibits the photolysis of water.

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Assertion : $D.C.M.U.$ is a photosynthetic inhibitor. Reason : $D.C.M.U.$ inhibits the photolysis of water.