JAMB Biology 2022 Objective — Question 21
Question 21 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2022 Objective paper, with the correct answer and a full explanation.
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21. The opening of the stomata of the epidermis in plants is by the process of
- A. (A) transpiration
- B. (B) active transport
- C. (C) osmosisCorrect
- D. (D) diffusion
Explanation
The opening and closing of the stomata (controlled by the guard cells, the only epidermal cells with chloroplasts) occurs by the process of osmosis.
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