question_answer 26)

  Glycogen is a homopolymer made of (a) glucose units                (b) galactose units          (c) ribose units                        (d) amino acids

Answer:

                  (a) Glycogen is the storage polysaccharide present in animals. Glycogen consist ofglucose molecule linked together with  linkages with  branch points occurring every 8-12 residues. Galactose, on the other hand is a monosaccharide, and combines with glucosethrough condensation reaction, 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 and DNA. Amino acids are the monomers of proteins.