Question

If the stomatal opening is flaccid, which situation should occur?

A. The guard cells have swollen with water and the stomatal opening becomes large.
B. The guard cells have lost water and the stomatal opening becomes large.
C. The guard cells have gained water and the stomatal opening closes.
D. The guard cells have lost water and the stomatal opening closes."

Answer 1

When the stomatal opening is flaccid, it means the guard cells have lost water and the stomatal opening closes to prevent water loss through transpiration.

Step-by-step explanation:

When the stomatal opening is flaccid, it means that the guard cells surrounding the stomate have lost water and have become shrunken. As a result, the stomatal opening closes. The opening and closing of the stomata are controlled by the pressure changes in the guard cells, which are influenced by the movement of water. When the guard cells lose water and become flaccid, the stomatal opening closes to prevent water loss through transpiration.