Question

Glycogen is a homopolymer made of

(a) glucose units (b) galactose units

(c) ribose units (d) amino acids

Answer 1

(a) Glycogen is the storage polysaccharide present in animals. Glycogen consisl of glucose molecule linked together with $\alpha (1\to 4)$ linkages with $\alpha (1\to 6)$ branch points occuring every 8-12 residues.

Galactose, on the other hand is a monosaccharide, and combines with glucose through condensation reation, resulting in the formation of disaccharide, lactose.

Ribose is a pentose monosaccharide which has all hydroxyl group on the same side in fisher projection it forms a part of backbone in RNA adn DNA. amino acids are the monomers of proleins.