Question

Microorganism used in fermentation for alcohol is

• A. Lactobacillus
• B. Saccharomyces
• C. Penicillium
• D. Acetobacter

Answer 1

The correct option is B Saccharomyces

Fermentation bacteria are anaerobic, but use organic molecules as their final electron acceptor to produce fermentation end-products. Alcohol fermentation is done by yeast and some kinds of bacteria. Saccharomyces convert sugars into ethyl alcohol and carbon dioxide. Alcoholic fermentation begins after glucose enters the cell. The glucose is broken down into pyruvic acid. This pyruvic acid is then converted to CO2, ethanol, and energy. Humans have long taken advantage of this process in making bread, beer, and wine.

So the correct answer is 'Saccharomyces'.