Which of the following statements is true of muscle glycogen phosphorylase?
A)It catalyzes phosphorolysis of the ($\alpha$1 $\rightarrow$ 6)bonds at the branch points of glycogen.
B)It catalyzes the degradation of glycogen by hydrolysis of glycosidic bonds.
C)It degrades glycogen to form glucose 6-phosphate.
D)It exists in an active (a)form and an inactive (b)form that is allosterically regulated by AMP.
E)It removes glucose residues from the reducing ends of the glycogen chains.

Question

Which of the following statements is true of muscle glycogen phosphorylase?
A)It catalyzes phosphorolysis of the ($\alpha$1 $\rightarrow$  6)bonds at the branch points of glycogen.
B)It catalyzes the degradation of glycogen by hydrolysis of glycosidic bonds.
C)It degrades glycogen to form glucose 6-phosphate.
D)It exists in an active (a)form and an inactive (b)form that is allosterically regulated by AMP.
E)It removes glucose residues from the reducing ends of the glycogen chains.

Quizplus · Accepted Answer

Muscle glycogen phosphorylase exists in an active (a) form and an inactive (b) form, and its activity is allosterically regulated by AMP, which activates the enzyme.

Which of the Following Statements Is True of Muscle Glycogen α\alphaα

Which of the Following Statements Is True of Muscle Glycogen $\alpha$