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JAMB Biology 1984 Question 12

Question 12

Cell and Its Environment

Osmosis can be defined as the movement of

  1. A.molecules from solution of high concentration to low concentration
  2. B.molecules from solution of low concentration to high concentration
  3. C.water from solution of high concentration to low concentration
  4. D.water across a semi-permeable membrane from solution of low concentration to high concentration
  5. E.water across a semi-permeable membrane from solution of high concentration to low concentration
Show the answer and explanation

Answer: D (water across a semi-permeable membrane from solution of low concentration to high concentration)

Explanation

Osmosis is the movement of water molecules through a semi-permeable membrane from a dilute (low concentration) solution to a more concentrated one.