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Anatomy: Animals Inside

Skeletal System

What is chitin?

Chitin—a white, amorphous, semitransparent mass that is insoluble in common solvents like water and alcohol—is found in the exoskeletons of insects and other arthropods. It is referred to as a glucosamine polysaccharide with the formula of C30H50O19N4. The basic units of this substance are linked together by certain reactions that make up long chains; hydrogen bonds link the chains together and help make chitin rigid and strong.



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