GED Science Practice

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Which process is defined as Fermentation or respiration in the absence of oxygen?

  1. a. Positive electrode of an electrolytic cell

  2. b. Lack of a normal number of red blood cells

  3. c. Fermentation in the absence of oxygen

  4. d. Industrial gas emissions combining with water

The correct answer is: c. Fermentation in the absence of oxygen

Fermentation in the absence of oxygen is defined as anaerobic respiration. Anaerobic respiration can also be referred to as fermentation. The other options are not related to fermentation or respiration in any way. A positive electrode of an electrolytic cell is used in electrolysis, which is a chemical reaction that requires electricity. Lack of a normal number of red blood cells is a condition related to blood disorders. Industrial gas emissions combining with water is a process of acid rain formation. None of these processes involve fermentation or respiration in the absence of oxygen.

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