Multiple choice

The process during which pyruvic acid is converted into ethyl alcohol or organic acids is called as

  1. fermentation

  2. glycolysis

  3. photosynthesis

  4. aerobic respiration
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A Correct answer
Explanation

Fermentation is the anaerobic process where pyruvic acid is converted into ethyl alcohol (as in yeast) or organic acids (as in lactic acid fermentation). Glycolysis occurs earlier to produce pyruvic acid, while photosynthesis produces glucose. Aerobic respiration requires oxygen and produces CO2 and water, not alcohol.

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