Question

Answer the following question.

Write explanatory notes on Fermentation by yeast.

Answer 1

Alcoholic fermentation is a type of anaerobic respiration where the pyruvate is decarboxylated to acetaldehyde. The acetaldehyde is then reduced by NADH+H⁺ to ethanol and Carbon dioxide. Since ethanol is produced during the process, it is termed alcoholic fermentation. It is represented as follows:

Alcoholic fermentation-

\[\ce{\underset{\text{Glucose}}{C6H12O6}->[Glyocolysis]\underset{\text{Pyruvic acid}}{2CH3COCOOH}-> CO2↑ + \underset{\text{Acetaldehyde}}{2CH3CHO + 2NADH + H+} ->\underset{\text{Ethanol}}{2C2H5OH}}\]