Glyeogen is

Options

A. Structurally similar to amylopectin but extensively branched
B. Structurally very much similar to amylopctin
C. a structural polysacharide
D. a polymer of `beta`- D- glucose units.

Answer

A

Explanation

Glycogen is called animal starch because its structure is similar to that of amylopectin, the main difference between glycogen and amylopectin is that amylopectin chains consists of about 20 - 25 glucose units but glycogen charins are much shorter and consists of about 10 - 14 glucose units, i.e., glycogenis highly brached.