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julesh22 julesh22
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11 years ago
Please help!
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wrote...
11 years ago
fermentation produces alcohol/lactic acid. anaerobic respiration doesn't require oxygen.
wrote...
11 years ago
Fermentation doesn't require oxygen either; the difference is whether or not an electron transport chain is present.

Anaerobic respiration takes place in certain prokaryotic organisms that live in environments without oxygen. These organisms have an electron transport chain but do not use oxygen as a final electron acceptor at the end of the chain.

Fermentation is basically a way of harvesting chemical energy without using either oxygen or any electron transport chain, that is, there is no cellular respiration. Fermentation is an expansion of glycolysis that allows continuous generation of ATP by the substrate-level phosphorylation of glycolysis.

As mentioned above this answer, there is two types of fermentation, both alcohol fermentation and lactic fermentation.

The main difference between these two types is that in alcohol fermentation, pyruvate is converted to ethanol (in two steps) and you have a release of CO2, and the with the lactic fermentation, pyruvate is reduced directly to form lactate as and end product(which is the ionized form of lactic acid). In lactic fermentation you have no release of CO2.
wrote...
11 years ago
Main difference is - In fermentation- electron donated to a product(it should be electron acceptor) that came from inside the cell like pyruvate and in anaerobic respiration - electron is donated to a electron acceptor that came from outside the cell. Both process donates electrons but difference is the electron acceptors.
Fermentation -> Endogenous electron acceptor
Anaerobic respiration -> Exogenous electron acceptor

Also, fermentation can also occur in presence of oxygen (as in case of yeast) but anaerobic won't.
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