A) Checking respiration
B) Destroying chloroplast
C) Inhibiting carbon dioxide fixation as it is strong inhibitor of pigment system-II
D) Inhibiting photolysis of water as it is a strong inhibitor of pigment system-I
Correct Answer: C
Solution :
DCMU (Dichlorophenyl dimethyl urea): This herbiside breaks the carrier chain between PS-I and PS-II and also break to non-cyclic phosphorylation so that light reaction is blocked.
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