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Biochemistry Carbohydrates a2e9b346

The immediate degradation of glycogen under normal conditions gives rise to which one of the following?

A
More glucose than glucose-1-phosphate
B
More glucose-1-phosphate than glucose
C
Equal amounts of glucose and glucose-1-phosphate
D
Neither glucose nor glucose-1-phosphate
High-Yield Explanation
Phosphorylase produces glucose-1-phosphate from glucose residues linked a-1,4. Free glucose is produced from a-1,6-linked residues at branch points by an a-1,6-glucosidase activity of the debranching enzyme. Degradation of glycogen produces glucose-1-phosphate and glucose in about a 10:1 ratio, which is the ratio of the a-1,4 linkages to a-1,6 linkages.

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