Question

Match the following:

(a)	Aquaporin	(i)	Amide
(b)	Asparagine	(ii)	Polysaccharide
(c)	Abscisic acid	(iii)	Polypeptide
(d)	Chitin	(iv)	Carotenoids

Select the correct option:

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

Answer 1

The correct option is A (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Aquaporins are channel proteins (polypeptides) that form pores on the membrane and allow movement of water.

Asparagine is an amide formed from the amino acid, aspartic acid, by the addition of another amino group. Hence, amides have more nitrogen than amino acids.

Abscisic acid (ABA) is a plant hormone derived from carotenoids. Carotenoids are plant pigments with yellow to orange colours.

Chitin is a homopolysaccharide. The repeating unit of chitin is N-acetyl-d-glucosamine.