Question

Assertion (A): Wine and bread are products of microbial activity.
Reason (R): Microbes ferment carbon compounds to produce alcohol and carbon dioxide.

• A. Both A and R are false.
• B. Only A is true.
• C. A and R are true but R is not the correct explanation of A.
• D. A and R are true and R is the correct explanation of A.

Answer 1

The correct option is D A and R are true and R is the correct explanation of A.

Fermentation is the process by which one carbon compound is converted to another by microorganisms. During this process the microbes produce a lot of heat and carbon dioxide. Alcohols, antibiotics, curd, etc., are produced by fermentation. The carbon dioxide released during fermentation puffs up bread and cakes and makes it spongy.