Exercise Physiology: Theory and Application to Fitness and Performance 9th Edition by Scott Powers, Edward Howley

Exercise 6

Define the terms glycogen, glycogenolysis, and glycolysis.

Step 1 of 3

Glycogen is the storage polysaccharide of animals. It is composed of repeated units of glucose linked together by glycosidic bonds. The polymer is mainly stored in liver and muscle. When the blood glucose falls below the normal, the body stimulates release of glucose from glycogen. The hormone insulin promotes synthesis of glycogen when excess glucose is present in the blood (glycogenesis).whereas the hormones glucagon, cortisol, and adrenal hormones stimulate breakdown of glycogen and release of glucose (glycogenolysis).