WAEC Biology 2020 Objective — Question 9
Question 9 of 50 from the West African Examinations Council (WAEC) Biology 2020 Objective paper, with the correct answer and a full explanation.
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Which of the following materials is not a living semi-permeable membrane?
- A. pig's bladder
- B. unripe paw-paw fruit
- C. yam tuber
- D. sheet of cellophaneCorrect
Explanation
Pig's bladder, unripe pawpaw fruit and yam tuber can function as living semi-permeable membranes; a sheet of cellophane is a non-living (artificial) semi-permeable membrane.
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