Question

Which of the following options is/are correct with respect to enzyme catalysts?

• A. Sucrose is hydrolysed by sucrase to glucose and fructose
• B. Urea is hydrolysed by urease to $C{O}_2$ and $N{H}_3$
• C. Cellulose is hydrolysed by amylase to cellobiose
• D. Pepsin is an aspartic protease

Answer 1

Answer: (A), (B), (D)

The correct options are
A Sucrose is hydrolysed by sucrase to glucose and fructose
B Urea is hydrolysed by urease to $C{O}_2$ and $N{H}_3$
D Pepsin is an aspartic protease

(a) Sucrase hydrolyses sucrose into its constituent monosaccharides fructose and glucose.

(b) Urease catalyses the hydrolysis of urea into $C{O}_2$ and $N{H}_3$.

(c) Amylase hydrolyses starch to maltose which is further hydrolysed by maltase to glucose.

(d) Pepsin is an aspartic protease, using a catalytic aspartate in its active site.