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JAMB Biology 1984 Question 30

Question 30

Excretion

Which of the following is NOT a waste product of plants?

  1. A.Tannins
  2. B.Oxygen
  3. C.Carbondioxide
  4. D.Sap
  5. E.Alkaloids.
Show the answer and explanation

Answer: D (Sap)

Explanation

Sap is the watery fluid in the plant's vessels and cells, not a waste. Tannins, alkaloids, oxygen (from photosynthesis) and carbon dioxide (from respiration) are wastes.