J & K CET Medical J & K - CET Medical Solved Paper-2004

  • question_answer
    Dichlorophenyl dimethyl urea (DCMU) :

    A) inhibits \[{{O}_{2}}\] evolution and non-cyclic photophosphyorylation

    B) promotes \[{{O}_{2}}\]evolution and non-cyclic photophosphorylation

    C)  both (a) and (b)

    D)  none of the above

    Correct Answer: A

    Solution :

                    Herbicides Dichlorophenyl Dimethyl Urea (DCMU) and Chlorophenyl Dimethyl Urea (CMU) are photosynthetic inhibitors. They inactivates PS-II (thus \[{{O}_{2}}\]evolution and non cyclic photophosphorylation).


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