Which of the Following Statements About Glycogen Is True?
(I)Glycogen $\alpha$

question 10

Multiple Choice

Which of the following statements about glycogen is true?
(I) Glycogen is a polymer of glucose in $\alpha$ (1 $\to$ 6) linkages with $\alpha$ (1 $\to$ 4) linked branches every 8-14 residues.
(II) UDP-glucose is produced from glycogen by the action of the enzyme phosphorylase.
(III) In glycogen breakdown,glucose residues are sequentially removed from the nonreducing ends.
(IV) The breakdown of glycogen in skeletal muscle ultimately supplies glucose-6-phosphate,which can enter glycolysis to generate ATP.

• A)I,II,III,IV
• B)I,II
• C)II,III,IV
• D)III,IV
• E)III only

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