1.

Which of the following statements is not correct regarding chitin ?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» Correct Answer - A
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.


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