Which of the following are true of the enzyme glycogen phosphorylase? Select any

ID: 592408 • Letter: W

Question

Which of the following are true of the enzyme glycogen phosphorylase? Select any/all answers that apply.

its activity is dynamically regulated by phosphorylation/dephosphorylation

it utilizes glucose 6-phosphate as a substrate

it generates glucose 6-phosphate as a product

it utilizes inorganic phosphate as a substrate

it catalyzes the hydrolytic cleavage of (1->4) bonds

its activity is dynamically regulated by phosphorylation/dephosphorylation

it utilizes glucose 6-phosphate as a substrate

it generates glucose 6-phosphate as a product

it utilizes inorganic phosphate as a substrate

it catalyzes the hydrolytic cleavage of (1->4) bonds

All options are correct except option c.

Reason:

Glycogen phosphorylase is an enzyme that breaks up glycogen into glucose.

option a : the enzyme activity is regulated by phosphorylation

option b: for proper metabolism, the glucose 6-phosphate is reuiqred as starting material.

option d: Inorganic phosphate is required to initiate the reaction, other wise the enzyme will not work.

option e: the enzyme spilts linkage between carbon 1 and carbon 4, thus hydrolytic cleavage of (1->4) bonds

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