Multiple choice

Which of the following monosaccharides is an important constituent of the exoskeletons of crustaceans?

  1. Sulfoquinovose

  2. N-Acetylglucosamine

  3. Sialic acids

  4. Glucosamine

  5. Galactosamine
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D Correct answer
Explanation

Glucosamine is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids. Glucosamine is part of the structure of the polysaccharides chitosan and chitin, which compose the exoskeletons of crustaceans.

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