Under what conditions would you expect a plant to have the highest concentration of abscisic acid (ABA)?
A) wet tropical rain forest
B) cool environment after a heavy rain
C) houseplant growing in low light conditions
D) desert after a long drought

Question

Quizplus · Accepted Answer

Abscisic acid (ABA) is known as the stress hormone in plants, and one of its functions is to regulate the closure of stomata in response to stress, such as drought. Therefore, in the desert after a long drought, one would expect a plant to have the highest concentration of ABA.

Under What Conditions Would You Expect a Plant to Have