JAMB - Chemistry (2001 - No. 30)
Fermentation is the
breaking down of carbohydrate to glucose
conversion of sugar to alcohol in the presence of yeast
breaking down of sugar to carbohydrate
conversion of alcohol to sugar in the presence of yeast
Paliwanag
Microorganisms, such as yeasts, molds, and bacteria, break down organic substances, usually in the absence of oxygen. This process breaks down starch or cellulose chains into individual sugar molecules, which are then fermented into ethanol and carbon dioxide.