Question

Which one will yield less than $4$ $kcal/mol$ of energy when phosphate bond is hydrolysed?

• A. ADP
• B. ATP
• C. Creatine phosphate
• D. Glucose 6-phosphate

Answer 1

The correct option is D Glucose 6-phosphate

The bond between two phosphate groups is a phosphoanhydride bond which is considered as high energy bond. ATP has two high energy phosphoanhydride bond. ADP has one phosphoanhydride bond. Creatine phosphate also has high phospahte bond between the nitrogen and phosphate. The phosphate bond in glucose phosphate is the weakest so it will yield less than 4kcal/mol of energy when phosphate bond is hydrolysed.

So, the correct answer is option D.