What is the primary mechanism by which glycogen phosphorylase breaks down glycogen?

A Hydrolysis of alpha-1,4-glycosidic bonds
B Phosphorolysis of alpha-1,4-glycosidic bonds ✓
C Oxidation of alpha-1,4-glycosidic bonds
D Reduction of alpha-1,4-glycosidic bonds

Explanation

Glycogen phosphorylase breaks down glycogen through phosphorolysis of alpha-1,4-glycosidic bonds, resulting in the formation of glucose-1-phosphate.

Source

Lehninger Principles of Biochemistry
Carbohydrate Metabolism Biochemistry Glycogen Metabolism Medium NURSING Confidence: high