ANSWER is Conversion of SUGAR into alcoholFermentation is the PROCESS by which molecules such as GLUCOSE are broken down anaerobically.By the process of fermentation, the sugars are converted into alcohol.The enzymes LIKE pyruvic acid decarboxylase and alcohol dehydrogenase catalyze these reactions.It normally occurs in yeast cells bacteria and in the muscles of animals.It is a method of extracting energy from molecules.Fermentation accounts for only a partial breakdown of glucose.In fermentation, there is a net gain of only two molecules of ATP for each molecule of glucose degraded to pyruvic acid.Wine and beer are produced by fermentation.No ATP would be produced without fermentation.