Most herbicides attack

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(B) Most herbicides are designed to inhibit the light-dependent reactions of photosynthesis. Specifically,many common herbicides (such as diuron or at

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Photosystem $II$

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(B) Most herbicides are designed to inhibit the light-dependent reactions of photosynthesis. Specifically,many common herbicides (such as diuron or atrazine) target the $D1$ protein in the reaction center of Photosystem $II$. By binding to this site,they block the electron flow from the primary electron acceptor to the plastoquinone pool,thereby inhibiting the photolysis of water and oxygen evolution,which ultimately leads to the death of the plant.

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