.13. Which of the following accurately describes fermentation? A. Fermentation generates more ATP than cellular respiration. B. Fermentation can only occur in the presence of oxygen. C. Fermentation makes NAD+ needed to keep glycolysis going. D. Fermentation always produces carbon dioxide.

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Option (C) is the correct answer to this question.  Explanations as to why the other options are not the correct responses are found below.

  • Option (A) is not the correct answer because fermentation produces much less ATP than aerobic respiration. In the presence of oxygen, aerobic respiration produces 34-38 ATP. ...

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Option (C) is the correct answer to this question.  Explanations as to why the other options are not the correct responses are found below.

  • Option (A) is not the correct answer because fermentation produces much less ATP than aerobic respiration. In the presence of oxygen, aerobic respiration produces 34-38 ATP.  On the other hand, in the absence of oxygen, fermentation produces a net yield of only 2 ATP. 
  • Option (B) is not the correct answer because fermentation is an anaerobic process, which means that it occurs in the absence of oxygen (“an” = without, “aerobic” = atmosphere).
  • Option (D) is not the correct answer because there are two types of fermentation known as lactic acid fermentation and ethanol fermentation. Lactic acid fermentation does not produce carbon dioxide.
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