Fermentation normally occurs in an the absence of oxygen (called anaerobic) but is can occur in its presence
No, alcoholic fermentation does not require oxygen. This process is anaerobic, meaning it occurs in the absence of oxygen. Yeast cells convert sugar into alcohol and carbon dioxide without the need for oxygen.
Anaerobic means "without air (oxygen)". Fermentation allows some cells to make ATP without having oxygen present. Fermentation is not nearly as efficient as aerobic respiration, since it produces a net yield of only 2 ATP per glucose molecule (aerobic respiration produces 36-38 ATP per glucose).
Anaerobic respiration occurs when an organic molecule accepts hydrogen atoms in the absence of oxygen. This process typically involves glycolysis followed by fermentation to produce ATP in the absence of oxygen.
Cellular respiration is a process that occurs in the presence of oxygen and results in the production of ATP (energy) from glucose. Fermentation, on the other hand, occurs in the absence of oxygen and results in the production of ATP without the need for oxygen, but at a lower efficiency compared to cellular respiration. Fermentation also produces byproducts such as alcohol or lactic acid.
This is a tricky question, because typically, in biology, fermentation refers to a metabolic process that occurs anaerobically (without oxygen). However, my hobby is homebrewing beer, so I'm going to take a whack at it. It's important to start fermentation (yeast-based) with high levels of oxygen, because the goal initially during primary fermentation is to convert the sugars in the "wort" (grain-soup) to alcohol. During the conditioning stage, the yeast is used to convert more sugar (added later) to carbon dioxide, and this is done in the bottle with a cap. So, my answer is that aerobic fermentation results in the production of LESS carbon dioxide, although there still is SOME. Anaerobic fermentation results in production of gas (CO2, CH4, etc, depending on the fermenting organism and the environment).
oxygen.
Oxygen
Basically Fermentation is an Anaerobic respiration (i.e. Oxidation of energy compounds in the absence of oxygen).That means the answer to your question is 'oxygen'.
oxygen
in an environment where there is little or no oxygen. aerobic respiration requires oxygen ad when it is not present fermentaion (anaerobic respiration) occurs because it works when oxygen isn't there
Fermentation occurs in muscles after strenuous exercise and physical activity. Lactic acid fermentation occurs when muscles are in need of oxygen.
Fermentation occurs when a cell does not get enough oxygen to carry out aerobic respiration. Instead, the cell uses anaerobic pathways to produce energy in the form of ATP.
When a cell can't get oxygen to produce energy through aerobic respiration, it undergoes fermentation as an alternative process to generate ATP. This typically occurs in anaerobic conditions.
oxygen
No, alcoholic fermentation does not require oxygen. This process is anaerobic, meaning it occurs in the absence of oxygen. Yeast cells convert sugar into alcohol and carbon dioxide without the need for oxygen.
Where there is little or no oxygen
Fermentation primarily occurs in the cytoplasm of the cell in both prokaryotes and eukaryotes. It is a metabolic process that allows cells to generate energy in the absence of oxygen by converting sugars into other compounds like alcohol or lactic acid.