What is the primary role of the enzyme glycogen synthase in carbohydrate metabolism?

A To break down glycogen into glucose
B To synthesize glycogen from glucose ✓
C To convert glucose into fructose
D To convert sucrose into starch

Explanation

Glycogen synthase is responsible for catalyzing the transfer of glucose units from UDP-glucose to the growing glycogen chain, thereby synthesizing glycogen from glucose.

Source

Biochemistry textbooks
Carbohydrate Metabolism Biochemistry Glycogen Metabolism Medium MEDICAL Confidence: high