Question

Amino sugars are the building blocks of which polysaccharide?
A. Chitin
B. Starch
C. Glycogen
D. Cellulose

Answer 1

Hint: Proteins are made up of amino acids, which are tiny chemical compounds with an alpha (central) carbon atom attached to an amino group, a carboxyl group, a hydrogen atom, and a variable component known as a side chain. Monosaccharides are the building units of polysaccharides.

Complete answer:
Chitin is a homopolymer of N-acetylglucosamine, an amino derivative of glucose units. Chitin is made up of amino sugars, which are the building blocks of the protein.

As a result, the right response is 'Chitin'.

Chitin is an abundant extracellular amino-sugar polymer that forms cell walls in fungi, as well as exoskeletons and peritrophic membranes in arthropods, in conjunction with other external biomacromolecules (carbohydrates, proteins).

Glycans, or polysaccharides, are massive polymers made up of hundreds of monosaccharide monomers. Starch, glycogen, and cellulose, three of the most biologically essential polysaccharides, are all made up of repeating glucose units, however their structures differ.

An amino sugar is a sugar molecule with an amine group in place of the hydroxyl group. It's also known as 2-amino-2-deoxy sugar in technical terms. There are approximately sixty amino sugars discovered, with N-acetylglucosamine being the most common.

Note:-
A glucogenic amino acid is one that can be transformed to glucose through the process of gluconeogenesis. The conversion of glucogenic amino acids to alpha keto acids and then to glucose, both of which occur in the liver, is required for the synthesis of glucose.