Question

What is the significance of chitin in arthropods?
the answers are
Chitin is a storage carbohydrate that forms their exoskeleton.

Chitin is a structural carbohydrate that forms their exoskeleton.

Chitin is a protein that forms their exoskeleton.

Answer 1

Arthropods have their exoskeleton made up of chitin. And chitin is a structural polysaccharide/carbohydrate.

Answer 2

Chitin is a structural carbohydrate that forms their exoskeleton

Answer 3

structural polysaccharides provide the rigidity to the cell. So chitin is a structural carbohydrate not a storage carbohydrate. :) Hope you got it :)