Exoskeleton of insects is made up of chitin this is a
Answers
Answer:
Polysaccharide
Explanation:
Chitin is a linear homopolysaccharide composed of N-acetyl-D-glucosamine residues in β-linkage. The only chemical difference from cellulose is the replacement of a hydroxyl group at C-2 with an acetylated amino group. The deacetylated form of chitin refers to chitosan.
Chitin is the principal component of the hard exoskeleton of nearly a million species of arthropods, insects, lobsters and crabs, and is probably the second most abundant polysaccharide next to cellulose in nature.
In exoskeleton of insects, chitin is frequently associated with proteins. In cuticle, some of the chitin is covalently linked to proteins.
Several different types of chitin-protein assemblies in the insect cuticle have been recognised. In adult flies, the cuticle is composed of chitin-melanin and melanoprotein complexes.