How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to `CO_(2)` and `H_(2)O` yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal

Options

A. Fifty-seven
B. One
C. Two
D. Thirty

Answer

A

Explanation

In this question, glucose and ATP generation is a hypothetical question. This is because of glucose molecule on complete oxidation can only provide a maximum of 38 molecules of ATP but not on the basis of values provided by us. Moreover, each ATP molecule on hydrolysis releases only 7.6 kcal of energy not 12 kcal of energy given in this question.
However on the basis of values if one molecule of ATP releases 7.6 kcal of energy then the number of ATP Molecules that can produce 686 kcal of energy from one glucose molecule are about 686/12=57 molecules of ATP .