Abscisic acid is an important signal,transported from roots to the stem and leaves during times of water stress,that prevents:
A)additional auxin production.
B)ethylene buildup in the stems.
C)leaf drop.
D)phototropism.
E)stomatal opening.

Question

Quizplus · Accepted Answer

Abscisic acid is known to inhibit stomatal opening during times of water stress, thus reducing water loss through transpiration. The other options (A, B, C, and D) are not directly related to the role of abscisic acid in water stress responses.

Abscisic Acid Is an Important Signal,transported from Roots to the Stem