Respuesta :

Energy is required for the normal functioning of the organs in the body. Many tissues can also use fat or protein as an energy source but others, such as the brain and red blood cells, can only use glucose. Glucose is stored in the body as glycogen. The liver is an important storage site for glycogen.

Answer: Glycogen

Explanation: When we intake food which is a source of carbohydrate to the body, then it is broken down into glucose molecules to be used as a source of energy.

The energy is obtained from the glucose molecules present in the bloodstream. The extra glucose gets stored in the muscle in the form of glycogen.

When there is a fasting condition or low glucose in the blood stream,  then the stored glycogen is converted into glucose to provide energy to the body.

Hence, Glucose and Glycogen metabolism is important for the body.