Which Statement Is TRUE of Glycogen Synthase?
A) Activation of the Enzyme

Multiple Choice

Which statement is TRUE of glycogen synthase?

A) Activation of the enzyme involves a phosphorylation.
B) It catalyzes addition of glucose residues to the nonreducing end of a glycogen chain by formation of ( $\alpha$ 1 $\rightarrow$ 4) bonds.
C) It uses glucose-6-phosphate as donor of glucose units
D) It catalyzes addition of glucose residues at branch points by formation of ( $\alpha$ 1 $\rightarrow$ 6) bonds.
E) The enzyme has measurable activity only in liver.