Question

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$2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal?

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

Answer 1

Answer: (C)

Fifty-seven

Normally, a glucose can synthesize a maximum of 38 ATPs. Considered in the form of energy stored in glucose and no losses, then maximum production of ATPs will be 686 kcal

12 kcal

= 57 ATP.

Hence, the correct answer is 'Fifty-seven'