Which cells regulate the opening and closing of the stoma?
Correct answer: D. Guard cells
- A. Neutrophil cells
- B. Basophil cells
- C. Mesophyll cells
- D. Guard cells
Explanation
Stoma are pores in the plant epidermis that function as gateways linking the intercellular gas spaces to the external environment. Two guard cells surround each stomatal pore, and changes in turgor pressure of the guard cells regulate the size of the pore aperture.
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