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KVPY Sample Paper KVPY Stream-SX Model Paper-8

  • question_answer
    The complete oxidation of one mole of glucose yields 2880 kJ of energy. The addition of one phosphate molecule to ADP requires 30.6 kJ of energy per mole. In aerobic respiration, 38 molecules of ATP are formed as a result of the breakdown of each glucose molecule. Which figure best represents the efficiency of aerobic respiration in trapping the energy released by the glucose molecule?

    A) 23%                             

    B) 36%

    C) 45%                             

    D) 40%

    Correct Answer: D

    Solution :

    The total amount of energy used in forming \[38\,ATP=38\times 30.6=1162.8\,kJ\] Thus, the efficiency of aerobic respiration is \[\frac{1162.8}{2880}\times 100%=40%\]


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