Glycogenolysis is the enzymatic process of breaking down glycogen, a stored polysaccharide, into glucose-1-phosphate and glucose to provide energy or maintain blood sugar levels during fasting or increased energy demand. Glycogenolysis is the breakdown of the molecule glycogen into glucose, a simple sugar that the body uses to produce energy. Glycogen is essentially stored energy in the form of a long chain of glucose, and glycogenolysis takes place in muscle and liver cells when more energy needs to be produced. Degradation of stored glycogen, termed glycogenolysis , occurs through one of two pathways, cytosolic and lysosomal. The cytosolic pathway involves the actions of glycogen phosphorylase (GP; often referred to simply as phosphorylase) and the glycogen debranching enzyme (GDE). Glycogenolysis is a process in which a glycogen molecule breaks down into individual molecule of Glucose. This process takes place in Liver and Muscles.
