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What condition must exist in a cell to engage in fermentation?
CH. 7 Sec. 1 & 2
| Question | Answer |
|---|---|
| What condition must exist in a cell for the cell to engage in fermentation? | Oxygen must be either absent or very low in concentration. |
| How efficient is glycolysis? | Not very, only 3.5% of energy that could be released by the complete oxidation of glucose is transferred to ATP |
What are the conditions in which fermentation will occur?
Fermentation is important in anaerobic conditions when there is no oxidative phosphorylation to maintain the production of ATP (adenosine triphosphate) by glycolysis. During fermentation, pyruvate is metabolised to various compounds such as lactic acid, ethanol and carbon dioxide or other acids.
What conditions must be present or absent for fermentation to occur?
Fermentation happens in the absence of oxygen. Only the two ATP from glycolysis are produced under anaerobic conditions. Alcoholic fermentation and lactic acid fermentation are the two types of fermentation.
What conditions are necessary for fermentation and what is produced?
In addition to oxygen, they require a basic substrate such as sugar. Some yeasts can ferment sugars to alcohol and carbon dioxide in the absence of air but require oxygen for growth.
Why do cells produce lactic acid during fermentation?
When you are sprinting full speed, your cells will only have enough ATP stored in them to last a few seconds. Once the stored ATP is used, your muscles will start producing ATP through lactic acid fermentation. Fermentation makes it possible for cells to continue generating ATP through glycolysis. Lactic acid is a byproduct of fermentation.
Which is the first reaction in the fermentation process?
Fermentation is glycolysis followed by a process that makes it possible to continue to produce ATP without oxygen. Glycolysis is the first series of reactions that occur during cellular respiration. Glycolysis does not require oxygen to produce ATP.
Which is the final electron acceptor in fermentation?
Some living systems use an organic molecule as the final electron acceptor. Processes that use an organic molecule to regenerate NAD + from NADH are collectively referred to as fermentation. In contrast, some living systems use an inorganic molecule as a final electron acceptor; both methods are a type of anaerobic cellular respiration.
How is the process of fermentation beneficial to muscle cells?
Fermentation is beneficial in that it can generate ATP quickly for working muscle cells when oxygen is scarce. Fermentation is glycolysis followed by a process that makes it possible to continue to produce ATP without oxygen. G lycolysis is the first series of reactions that occur during cellular respiration.