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WAEC Biology 1991 (August) Question 6

Question 6

Respiration

The process of anaerobic respiration of yeast in sugar solution is known as

  1. A.oxidation
  2. B.fermentation
  3. C.tissue respiration
  4. D.alcohol production
  5. E.decomposition
Show the answer and explanation

Answer: B (fermentation)

Explanation

Yeast breaks sugar down without oxygen into alcohol and carbon dioxide: fermentation.