It is a method of anaerobic respiration. It produce twoATP
Glycolysis
The new production of ATP is 2, because fermentation includes the previous process of glycolysis which has a net 2 ATP production. Fermentation also oxidizes NADH back to NAD+.
Glycolysis
Both lactic fermentation and alcoholic fermentation produce energy in the form of ATP for cells. Lactic fermentation results in the production of lactic acid, while alcoholic fermentation produces ethanol and carbon dioxide as byproducts.
Fermentation releases energy without using oxygen
In fermentation, ATP is produced through substrate-level phosphorylation, resulting in a low yield of ATP (typically 2 ATP molecules per glucose molecule). In contrast, cellular respiration, particularly aerobic respiration, generates a significantly higher yield of ATP (up to approximately 36-38 ATP molecules per glucose) through oxidative phosphorylation and the electron transport chain. While fermentation occurs in the absence of oxygen, cellular respiration requires oxygen for efficient ATP production. Thus, cellular respiration is a more efficient process for ATP generation compared to fermentation.
Fermentation helps a cell make ATP by regenerating NAD+, which is essential for glycolysis to continue. During glycolysis, glucose is broken down to produce a small amount of ATP and NADH. In the absence of oxygen, fermentation pathways convert NADH back to NAD+, allowing glycolysis to persist and continue producing ATP, albeit in limited amounts compared to aerobic respiration. Thus, fermentation enables cells to maintain ATP production under anaerobic conditions.
Alcohol fermentation ~apex~<3
Both aerobic respiration and lactic acid fermentation involve the breakdown of glucose to produce ATP without the need for oxygen. However, they differ in the final products formed: aerobic respiration produces carbon dioxide and water, while lactic acid fermentation produces lactic acid.
Aerobic respiration is more efficient in terms of ATP production compared to fermentation. Aerobic respiration can generate up to 36-38 ATP molecules per glucose molecule, while fermentation typically produces only 2 ATP molecules per glucose molecule.
The common product in both cellular respiration and fermentation is adenosine triphosphate (ATP). While cellular respiration primarily produces ATP through aerobic processes, fermentation generates ATP anaerobically, albeit in smaller amounts. Both processes begin with glycolysis, which breaks down glucose to produce pyruvate, leading to ATP production in each pathway.
A.T.P. production by respiration is greater than fermentation because most of the energy remains locked up in the products of fermentation (alcohol of lactic acid) formed from pyruvic acid.