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Question

Glycogen is a homopolymer made of

A
Amino acids
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B
Ribose units
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C
Galactose units
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D
Glucose units
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Solution

The correct option is D Glucose units
Glycogen

Glycogen is a branched polysaccharide made up of only glucose residues and hence it is homopolysaccharide/ homopolymer. It contains α-1,4 glycosidic linkage at the unbranched part between glucose residues and α-1,6 glycosidic linkage at the branching points.


Glucose

Glucose is a monosaccharide and also a monomer of many disaccharides and polysaccharides such as glycogen, starch, cellulose.


Galactose

Galactose is a monosaccharide and has the same chemical formula as that of glucose.


Ribose

Ribose is a pentose sugar found in RNA (ribonucleic acid).

Amino acids

Amino acids are organic compounds that are the constituents
(monomers) of proteins.


Final answer a. Glucose units

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