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NEET Sample Paper NEET Sample Test Paper-80

  • question_answer
    The two molecules of pyruvate are completely degraded in Krebs cycle to form how many molecules of ATP, \[NAD{{H}_{2}}\,\,and\,\,FAD{{H}_{2}}\] respectively.

    A)  3, 4, 5             

    B)  5, 4, 3

    C)  2, 8, 2             

    D)  8, 2, 2

    Correct Answer: A

    Solution :

    Complete oxidation of one molecule of pyruvate in Kreb? cycle can be representated by \[\operatorname{Pyruvic}\,+4\,NA{{D}^{+}}+FAD+2{{H}_{2}}O+ADP+Pi\] \[3C{{O}_{2}}+ 4NADH + 4{{H}^{+}}+ FAD{{H}_{2}} +ATP\] So, in complete oxidation of two molecules of pyruva, 2 molecules of ATP, 8 \[NAD{{H}_{2}}\] and \[2FAD{{H}_{2}}\] are obtained.


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