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JAMB Biology 2005 Question 22

Question 22

Excretion

Excess water in plants is excreted as water vapour and droplets respectively through

  1. A.respiration and guttation
  2. B.transpiration and guttation
  3. C.photosynthesis and guttation
  4. D.guttation and condensation
Show the answer and explanation

Answer: B (transpiration and guttation)

Explanation

Plants lose water vapour through their stomata in transpiration. Guttation pushes out liquid droplets through pores at the leaf edges.