Which of the following statements is not correct regarding chitin ?

Options

A. It is a storage polysaccharide.
B. It is a homopolysaccharide.
C. It is a constituent of arthropod exoskeleton and fungal cell wall.
D. It is the second most abundant carbohydrate on earth.

Answer

A

Explanation

Chitin is the second most abundant polysaccharide (after cellulose). Chitin is not a storage polysaccharide rather it is a structural homopolysaccharide, which forms the structural component of fungal walls and exoskeleton of arthropods. It is an unbranched polysaccharide formed of N-acetylglucosamine (NAG) monomers joined together by `beta-1, 4` linkages.