Saturday, October 31, 2009

.13. Which of the following accurately describes fermentation? A. Fermentation generates more ATP than cellular respiration. B. Fermentation can...

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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