The following steps occur during a plant's response to drought stress.
I. ABA accumulates in the leaves
II. stomata close
III. transpiration decreases
IV. guard cell potassium channels open
Which of the following places the steps in the correct sequence to represent the acquisition of drought tolerance in the plant?
A) I, II, III, and IV
B) I, IV, II, and III
C) II, I, III, and IV
D) IV, I, II, and III

Question

Quizplus · Accepted Answer

ABA accumulates in the leaves (I), leading to the opening of guard cell potassium channels (IV), which causes stomata to close (II), and subsequently, transpiration decreases (III).

The Following Steps Occur During a Plant's Response to Drought