Question

Diastase enzyme converts starch to

• A. Glucose
• B. Sucrose
• C. Maltose
• D. Ethyl alcohol

Answer 1

The correct option is C

Maltose

• Diastase enzyme is a starch hydrolyzing enzyme that is responsible for breaking down complex carbohydrates (polysaccharides, i.e. starch) into simple carbohydrates (monosaccharides, i.e. simple sugar).
• The enzyme diastase catalyzes the conversion of starch to maltose.

Maltose is obtained by partial hydrolysis of starch by the enzyme diastase present in malt, which is produced during the germination of the seeds.

The reaction is as follows:

$\underset{\mathrm{Starch}}{2{\left({\mathrm{C}}_6{\mathrm{H}}_{10}{\mathrm{O}}_5\right)}_{\mathrm{n}}}+\underset{\mathrm{Water}}{{\mathrm{nH}}_2\mathrm{O}}\stackrel{\mathrm{diastase}}{\to }\underset{\mathrm{maltose}}{{\mathrm{nC}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6}$

Thus, the enzyme diastase catalyzes the conversion of starch to maltose.

Hence, option (c) i.e. maltose is correct.