What is the role of glycogenin in glycogen synthesis?

A It acts as a primer for glycogen synthesis ✓
B It inhibits glycogen synthase activity
C It breaks down glycogen into glucose
D It regulates glycogen phosphorylase activity

Explanation

Glycogenin is a protein that acts as a primer for glycogen synthesis, allowing glycogen synthase to initiate the formation of a new glycogen chain.

Source

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