AMU Medical AMU Solved Paper-1998

  • question_answer
    What is the end product of glycolysis of a glucose molecule?

    A)  fructose 1,6- diphosphate

    B)  pyruvate and ATP

    C)  phosphoglyceraldehyde

    D)  lactic acid and ATP.

    Correct Answer: B

    Solution :

    : Glycolysis (Embden Meyerhof Parnas pathway) is the sequence of enzyme catalyzed reactions that converts glucose into two molecules of pyruvate, plus two molecules of NADH with concomitant formation of two ATP molecules. It occurs in the cell cytoplasm. The overall reaction of glycolysis can be summarized as follows - \[\underset{Glucose}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,+2NAD+2ADA+\underset{\begin{smallmatrix}  morganic \\  phosphate \end{smallmatrix}}{\mathop{2ip}}\,\xrightarrow[{}]{{}}\] \[\underset{pyruvic\text{ }acid}{\mathop{2C{{H}_{3}}COCOOH}}\,+2NAD{{H}_{2}}+2ATP\] Thus, for each molecule of glucose metabolized by glycolysis there is a net yield of two ATP molecules.


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