Punjab Medical Punjab - MET Solved Paper-2004

  • question_answer
    The first acceptor of \[C{{O}_{2}}\] in \[{{C}_{4}}\] plant is:

    A)  pyruvic acid

    B)  phosphoenol pyruvic acid

    C)  acetic acid

    D)  oxaloacetic acid

    Correct Answer: B

    Solution :

    \[{{C}_{4}}\]plants show \[C{{O}_{2}}\] acceptors at two levels but the first acceptor of \[C{{O}_{2}}\] is a \[3C-\]compound which after acceptance of \[C{{O}_{2}}\] converts into a \[{{C}_{4}}\] plants is given to, them. The first \[C{{O}_{2}}\] acceptor is a \[3C-\]compound.


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