Question: the amount of atp derived in the muscle from circulating...

The amount of ATP derived in the muscle from circulating glucose is less than the amount of ATP that would be obtained by mobilizing the same amount of glucose from muscle glycogen because

A) Glucose is released from glycogen as Glucose-1-Phosphate, which can be isomerized to Glucose-6-Phosphate therefore bypassing the hexokinase step that uses an ATP

B) Glucose is released from glycogen as Glucose-1-Phosphate, which can directly be converted to Fructose -6-phosphate requiring one less ATP Page 4

C) Glucose transporters, which are required to transport the circulating glucose into the muscle, use ATP

D) Circulating glucose must be converted to Glucose-1-phosphate before it can enter the muscle

E) none of the above