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JAMB Biology 1981 Question 13

Question 13

Excretion

What is the function of the contractile vacuole in Paramecium?

  1. A.Produces enzymes
  2. B.Gets rid of excreta
  3. C.Stores and digests food
  4. D.Gets rid of excess water
  5. E.Controls movement.
Show the answer and explanation

Answer: D (Gets rid of excess water)

Explanation

The contractile vacuole pumps out water that keeps entering by osmosis (osmoregulation).