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Unformatted text preview: or if it is noted that they use roughly 15 times more glucose in the anaerobic environment. A2: Several students have asked about this question. First let me steer you away from one incorrect response - in fermentation there is NO further production of ATP from pyruvate. So, cells produce ATP during glycolysis and pyruvate is the carbon chain product of glycolysis. But in anaerobic respiration that's the end of ATP production. The steps after pyruvate are simply for the purpose of restoring oxidized NAD. Now think about the fact that all the yeast cells need a certain amount of ATP to function, whether they are doing aerobic or anaerobic respiration. Yet, aerobic produces much more ATP/glucose than anaerobic. So, if they go anaerobic (just glycolysis and fermentation) they have to burn much more glucose to get the same amount of ATP for their needs....
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- Fall '08