EVERYDAY SCIENCE

Detailed explanation-1: -When oxygen is not present or if an organism is not able to undergo aerobic respiration, pyruvate will undergo a process called fermentation. Fermentation does not require oxygen and is therefore anaerobic. Fermentation will replenish NAD+ from the NADH + H+ produced in glycolysis.

Detailed explanation-2: -Fermentation – Anaerobic Respiration Anaerobic respiration is a type of cellular respiration where respiration takes place in the absence of oxygen. Fermentation is an anaerobic pathway-a common pathway in the majority of prokaryotes and unicellular eukaryotes.

Detailed explanation-3: -Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that’s performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end.

Detailed explanation-4: -Fermentation can be observed in the anaerobic condition only. When there is deprivation of the oxygen molecules in the human cell (mostly in the muscle cells), the body produces lactic acid. Once the oxygen supply is regained, this process is completely stopped.