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WAEC Biology 2019 Question 8

Question 8

Respiration

Anaerobic respiration in the organism illustrated in the diagram below produces carbon dioxide and

Diagram for this question
  1. A.ethanol.
  2. B.water.
  3. C.oxygen.
  4. D.glucose.
Show the answer and explanation

Answer: A (ethanol.)

Explanation

The diagram shows budding yeast. Without oxygen, yeast ferments glucose into ethanol (alcohol) and carbon dioxide.