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Question

Glycogen is a polymer of/Repeating unit of glycogen is

A
Galactose
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B
Glucose
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C
Fructose
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D
Sucrose
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Solution

The correct option is B Glucose
Glycogen is a polymer of glucose. Its structure is similar to amylopectin where two polymeric chains of glucose of alpha 1,4 glucose unit are linked by alpha 1,6 linkage. Starch is used as food reserve in plants similarly glycogen is used as a stored reserve in muscles.
The glucose present in the blood act as an instant source of energy for the muscles. The glucose is stored in the liver in form of glycogen. The glycogen is changed into glucose by glycogenolysis in the muscles and the glucose produces energy in form of ATP to the muscle by the process of glycolysis.
So, the correct answer is option B.

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