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JAMB Biology 2004 Question 15

Question 15

Cell and Its Environment

Use the diagram of the yam set-up to answer: Yam is used in this set-up because it

Diagram for this question
  1. A.is permeable to the salt solution
  2. B.is a plant material
  3. C.acts as a storage organ
  4. D.acts as a semi-permeable membrane
Show the answer and explanation

Answer: D (acts as a semi-permeable membrane)

Explanation

The living yam tissue lets water pass through but holds back the dissolved salt. It works as a semi-permeable membrane for osmosis.