Question

During exercise, what is the PRIMARY source of glucose used by the body?

a. glucose stored in bones
b. fatty acids stored in adipose tissue
c. protein found in blood
d. glycogen stored in skeletal muscles

Answer 1

The primary source of glucose used by the body during exercise is glycogen stored in skeletal muscles. Therefore, the correct option is D.

Step-by-step explanation:

The primary source of glucose used by the body during exercise is d. glycogen stored in skeletal muscles.

Glycogen is a storage form of glucose that is stored in notable quantities in the liver and skeletal muscles. During exercise, the body primarily utilizes the glycogen stored in the skeletal muscles as a source of glucose for energy production through glycolysis in the muscle itself.

While other sources such as fatty acids stored in adipose tissue and glucose from the blood can also be used, the primary source of glucose during exercise is the glycogen stored in the skeletal muscles.