VMMC VMMC Medical Solved Paper-2015

  • question_answer
    In \[{{C}_{3}}\]plants, the carbon dioxide acceptor is

    A) PEP carboxylase

    B) phosphoglyceric acid

    C) ribulose-1 -5 biphosphate

    D) \[NADP{{H}_{2}}\]

    Correct Answer: C

    Solution :

    RuBP (Ribulose-1-5 bisphosphate) is a 5-C compound which is the \[C{{O}_{2}}\]acceptor in \[{{C}_{3}}\] plants Fixation of atmospheric \[C{{O}_{2}}\]into stable organic compound, i.e. phosphoglyceric acid (PGA) occurs by RuBisCo. \[NADP{{H}_{2}}\]provides the hydrogen for the reduction reaction. PEP caiboxylase is a 3-C compound and \[C{{O}_{2}}\]acceptor in \[{{C}_{4}}\] plants.


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