How are the branches in glycogen produced? A) A branching enzyme catalyses the addition of a single glucose unit via an α (1,6) bond to glycogen from a glucose-1-phosphate, releasing P_i. B) A branching enzyme catalyses the addition of a single glucose unit via an α (1,6) bond to glycogen from a glucose-6-phosphate, releasing P_i. C) A branching enzyme catalyses the addition of a single glucose unit via an α (1,6) bond to glycogen from a glucose-UDP, releasing UDP. D) A branching enzyme moves a short chain of several glucose units from a linear α (1,4) section of glycogen to make a new α (1,6) branch point.

Question

Quizplus · Accepted Answer

Branching enzymes in glycogen synthesis move a short oligosaccharide chain from one part of the glycogen molecule and attach it to a primary chain through an α(1,6) linkage, creating a branch. This process does not involve the direct addition of single glucose units from glucose-1-phosphate, glucose-6-phosphate, or glucose-UDP as described in the other options.

How Are the Branches in Glycogen Produced