Chitin
Definition
Chitin is a long-chain polymer derived from glucose that forms part of the hard outer exoskeleton in insects, crustaceans, fungi, and other organisms.
Analogy
Imagine chitin as body armor for insects or crustaceans. It's tough and protective just like how body armor shields soldiers during battle.
Related terms
Exoskeleton: An external skeleton that supports and protects an animal's body in contrast to the internal skeleton (endoskeleton) of humans.
Polymer: A large molecule composed of many repeated subunits known as monomers.
Glucosamine: An amino sugar that is an essential component of chitin.
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