<P> Glycogenolysis is the breakdown of glycogen (n) to glucose - 6 - phosphate and glycogen (n - 1). Glycogen branches are catabolized by the sequential removal of glucose monomers via phosphorolysis, by the enzyme glycogen phosphorylase . </P> <P> The overall reaction for the breakdown of glycogen to glucose - 1 - phosphate is: </P>

The process of breaking down glycogen to glucose is an example of