Question

In the given figure, which component has thin outer walls and highly thickened inner walls?

Options

• A

• B

• C

• D

Answer 1

C

Explanation:

The guard cell, which has extremely thick inner walls and narrow exterior walls, is component (c). The guard cells have a bean-like form and an inner wall that curves inward toward the stomatal hole. During transpiration, the Guard cells’ thick wall makes it easier for the stomatal pore to open.