What is the role of UDP-glucose in glycogen synthesis?

A It acts as a primer for glycogen synthesis
B It donates glucose units to the growing glycogen chain ✓
C It inhibits the activity of glycogen synthase
D It stimulates the breakdown of glycogen

Explanation

UDP-glucose is a high-energy compound that donates glucose units to the growing glycogen chain during glycogen synthesis.

Source

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