ok sorry im not done reallyy
sorry not quite finished with that talk though but uhm yeah i looked it up on sparknotes cuz i was still kinda unsure and...
"Anaerobic Respiration
Aerobic respiration requires oxygen. However, some organisms live in places where oxygen is not always present. Similarly, under extreme exertion, muscle cells may run out of oxygen. Anaerobic respiration is a form of respiration that can function without oxygen.
In the absence of oxygen, organisms continue to carry out glycolysis, since glycolysis does not use oxygen in its chemical process. But glycolysis does require NAD+. In aerobic respiration, the electron transport chain turns NADH back to NAD+ with the aid of oxygen, thereby averting any NAD+ shortage and allowing glycolysis to take place. In anaerobic respiration, cells must find another way to turn NADH back to NAD+.
This “other way” is called fermentation. Fermentation’s goal is not to produce additional energy, but merely to replenish NAD+ supplies so that glycolysis can continue churning out its slow but steady stream of ATP. Because pyruvates are not needed in anaerobic respiration, fermentation uses them to help regenerate NAD+. While employing the pyruvates in this way does allow glycolysis to continue, it also results in the loss of the considerable energy contained in the pyruvate sugars.
There are two principle forms of fermentation, lactic acid fermentation and alcoholic fermentation. For the SAT II Biology, remember that no matter what kind of fermentation occurs, anaerobic respiration only produces 2 net ATP in glycolysis.
Lactic Acid Fermentation
In lactic acid fermentation, pyruvate is converted to a three-carbon compound called lactic acid:
pyruvate + NADHlactic acid + NAD+
In this reaction, the hydrogen from the NADH molecule is transferred to the pyruvate molecule.
Lactic acid fermentation is common in fungi and bacteria. Lactic acid fermentation also takes place in human muscle cells when strenuous exercise causes temporary oxygen shortages. Since lactic acid is a toxic substance, its buildup in the muscles produces fatigue and soreness.
im not trying to argue with you reallyy. i totally respect your view on it , but im just sharing what i know from the classes i took.
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