The branching enzyme catalyzes the cleavage of α(1,4) glycosidic bonds and the formation of α(1,6) glycosidic bonds, creating branch points in glycogen and amylopectin. This process is essential for the compact, branched structure of these polysaccharides, allowing for more efficient storage and mobilization of glucose.

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The Branching Enzyme
A) Couples the Formation of Glycogen with UDP

Question 79

Multiple Choice

The branching enzyme

A) couples the formation of glycogen with UDP loss from UDP-glucose.
B) makes $\alpha$ (1,4) linkages with the transfer of seven glucose units.
C) breaks $\alpha$ (1,6) branch points and remakes $\alpha$ (1,4) linkages.
D) catalyzes the cleavage of $\alpha$ (1,4) links and the formation of $\alpha$ (1,6) links.