WAEC Biology 2021 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Biology 2021 Objective paper, with the correct answer and a full explanation.
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9. A plant cell placed in a solution with a higher water potential will
- A. expand and then shrink.
- B. enlarge and become turgid.Correct
- C. expand and then burst.
- D. decrease in size and become flaccid.
Explanation
Water moves into the cell by osmosis (from higher to lower water potential outside-to-inside comparison), and the rigid cell wall prevents bursting, so the cell becomes turgid.
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