WAEC Biology 2005 Question 14

Question 14

Cell and Its Environment

Which of the following substances pass through the root cell membrane by osmosis?

  1. A.Cell sap
  2. B.Carbon dioxide
  3. C.Oxygen
  4. D.Water
Show the answer and explanation

Answer: D (Water)

Explanation

Osmosis is the movement of water molecules across a selectively permeable membrane; root hairs take in soil water this way.