Which stage(s) of cellular respiration will occur in the absence of oxygen?Group of answer choicespyruvate oxidationglycolysiscitric acid cycleoxidative phosphorylation
Question
Which stage(s) of cellular respiration will occur in the absence of oxygen?Group of answer choicespyruvate oxidationglycolysiscitric acid cycleoxidative phosphorylation
Solution
In the absence of oxygen, the only stage of cellular respiration that will occur is glycolysis. This process does not require oxygen and it takes place in the cytoplasm of the cell. The other stages - pyruvate oxidation, citric acid cycle, and oxidative phosphorylation - all require oxygen and take place in the mitochondria. Therefore, they will not occur if oxygen is not present.
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