Question

(a) What is fermentation process (b) What role is played by yeast in the conversion of canesugar to ethanol

Answer 1

Fermentation is a metabolic process that consumes sugar in the absence of oxygen. The products are organic acids, gases, or alcohol.

During fermentation process yeast kills itself by converting the sugars (C₁₂H₂₂O₁₁) found in grapes to ethyl alcohol. Alcohol can be separated from this mixture of yeast and other formed products by distillation process.