Question

The pores of the stomata are surrounded by which of the following?

• A. Cuticle
• B. Guard cells
• C. Lenticels
• D. None of these

Hint:

Lenticels are pores on woody stems, not on leaf epidermis.

Answer 1

The Correct Option is B

Step 1: Structure.
Each stoma (pore) in a leaf epidermis is bordered by two kidney-shaped guard cells.
Step 2: Function.
Guard cells control opening and closing of stomata by changing turgor pressure, thus regulating gas exchange and transpiration.
Step 3: Conclusion.
Hence, stomatal pores are surrounded by guard cells.