How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation…

How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to $\mathrm{CO}_2$ and $\mathrm{H}_2 \mathrm{O}$ yields $686 \mathrm{kcal}$ and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is $12 \mathrm{kcal}$ ?
  1. 1
  2. 2
  3. 30
  4. 57

Solution

Complete oxidation of one mole of glucose yields $=686 \mathrm{kcal}$. Chemical energy available in high energy phosphate bonds of one mole of $\mathrm{ATP}=12$ ATP ATP molecules maximally generated from one molecule of glucose $=$ $686 / 12=57$ ATP molecules.

Asked in: NEET 2006

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