What is the first source of glucose for the exercising muscle?
A)Blood glucose
B)Liver glycogen
C)Muscle glycogen
D)Muscle protein

Question

Quizplus · Accepted Answer

The breakdown of glycogen stored in the muscle makes glucose available for anaerobic metabolism at the beginning of physical activity.As muscle glycogen stores are used, blood glucose is taken up by the muscle for continued energy utilization.To maintain a supply of glucose for energy, liver glycogen will be broken down for release of glucose.Pyruvate and lactate can be recycled back to the liver for gluconeogenesis.

What Is the First Source of Glucose for the Exercising