Refer to the figure. This drought induced response is mediated by _______, which travels from the stressed roots upward through the xylem to the leaves.

Question

Refer to the figure.  This drought induced response is mediated by _______, which travels from the stressed roots upward through the xylem to the leaves.

Quizplus · Accepted Answer

Abscisic acid is a plant hormone that is produced in response to stress, such as drought. It helps regulate stomatal closure, reducing water loss from the plant. Abscisic acid is transported from the roots to the leaves through the xylem, which is consistent with the information provided in the question. Salicylic acid, jasmonic acid, nicotine, and latex are not directly involved in this type of response to drought.

Refer to the Figure