Q2 / 160 · JIPMER 2004 · Botany

The basic unit of chitin is

  • Correct answer
    A
    $N$-acetyl glucosamine
  • B
    glucose
  • C
    galactose
  • D
    fructose

Solution

The chitin (= polyglycosamine) is an acetate of mucopolysaccharide called glycosamine which is formed by the combination of polysaccharide with small peptide molecules. The basic unit (monomer) of chitin is $N$-acetylglucosamine, monomers are joined by $1-4 \beta$ linkages.

Hence, the correct answer is option: 'A'.

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