Question

How many ATP molecules could maximally be generated from one molecules of glucose, if the complete oxidation of one mole of glucose to $C{O}_2$ and $H_{2}O$ yields $686$ kcal and useful chemical energy available in high energy phosphate bond of one mole of ATP is $12$ kcal?

• A. $1$
• B. $2$
• C. $30$
• D. $57$

Answer 1

The correct option is D $57$

686 kcal/12 kcal = 57.1

Hence, 57 ATP molecules could be maximally generated from one molecule of glucose. Though this is a hypothetical scenario otherwise the number of ATP molecules produced after oxidation of a glucose molecule in the body is different ( 38 ATP ).

So, the correct option is '57'.