The stomatal pore is guarded by two kidney-shaped guard cells. Name the epidermal cells surrounding the guard cells. How does a guard cell differ from an epidermal cell? Use a diagram to illustrate your answer.
(N/A) The epidermal cells surrounding the guard cells are called subsidiary cells.
The differences between guard cells and epidermal cells are as follows:
The differences between guard cells and epidermal cells are as follows:
| Guard cells | Epidermal cells |
|---|---|
| $(1)$ They are bean-shaped or kidney-shaped (in dicots) or dumb-bell shaped (in monocots). | $(1)$ They are generally barrel-shaped or irregular. |
| $(2)$ They contain chloroplasts. | $(2)$ They generally lack chloroplasts. |
| $(3)$ They are specialized for regulating the opening and closing of stomata. | $(3)$ They provide protection and structural support to the plant surface. |
| $(4)$ Their inner walls are thick and elastic. | $(4)$ Their cell walls are uniformly thin. |
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