Fermentation is a process in which :

The correct answer is Organic COMPOUND is slowly decomposed into simple substances in absence of O2. Fermentation is a chemical process by which molecules such as GLUCOSE are broken down anaerobically. There are three different types of fermentation.Lactic Acid FermentationStarch or sugar is converted into lactic acid by yeast strains and bacteria.During exercise, the occurrence of muscle cramps is due to lactic acid formation.The ENERGY expenditure is faster than the oxygen supplied to the muscle cells.Alcohol FermentationAlcoholic fermentation is the process by which ethanol and carbon dioxide are produced from sugars like FRUCTOSE, glucose, and sucrose by yeasts during its production of cellular energy.Acetic Acid Fermentation​Vinegar is obtained from the fermentation of ethanol by acetic acid bacteria.Enteric fermentation is a digestive process that takes place in the digestive systems of ruminant animals by which carbohydrates are broken down by microorganisms into simple molecules for absorption into the BLOODSTREAM of an animal.