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NEET 2022, Biology Q3: Classification of Non-Chordates

NEET2022Biology
Q.

Exoskeleton of arthropods is composed of :

  1. A

    Cutin

  2. B

    Cellulose

  3. C

    Chitin

  4. D

    Glucosamine

Solution

The hard exoskeleton of arthropods (insects, crustaceans, arachnids, etc.) is built of chitin, a polysaccharide formed from N-acetylglucosamine units.

Cutin and cellulose are plant components, and glucosamine alone is only the monomer subunit, not the structural exoskeletal material.

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