What do herbicides primarily interfere with?

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(C) Herbicides,particularly those like $DCMU$ ($3$-($3$,$4$-dichlorophenyl)$-1,1-$dimethylurea),are known to act as inhibitors of photosynthesis.Speci

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Photolysis of water

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(C) Herbicides,particularly those like $DCMU$ ($3$-($3$,$4$-dichlorophenyl)$-1,1-$dimethylurea),are known to act as inhibitors of photosynthesis.Specifically,they interfere with the electron transport chain in the light-dependent reactions.They block the electron flow from Photosystem $II$ to plastoquinone,which effectively inhibits the photolysis of water (the splitting of water molecules) and the subsequent production of $ATP$ and $NADPH$.

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