Q20 / 180 · NEET 2020 (Phase 1) · Botany

Match the following

(a) Inhibitor of catalytic activity (i) Ricin
(b) Possess peptide bonds (ii) Malonate
(c) Cell wall material in fungi (iii) Chitin
(d) Secondary metabolite (iv) Collagen

Choose the correct option from the following

  • A
    (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  • B
    (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  • C
    (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
  • Correct answer
    D
    (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

Solution

Chitin: It is the second most abundant organic substance. In chitin the basic unit is a nitrogen containing glucose derivative known as N-acetyl glucosamine. The exoskeletons of arthropods and cell wall of fungi have chitin.

Collagen is the most abundant animal protein and is the chief component of connective tissue. Proteins are the biopolymers made up of monomeric amino acids joined by amide linkage or peptide bond.

Malonate is the competitive inhibitor of the enzyme succinic dehydrogenase.

Abrin and ricin are the toxins produced as secondary metabolites.

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

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