During an experiment, a student covers all the stomata of a plant with nail polish, sealing them shut.

Question

(a) Predict how this would affect water transport.

(b) How would this affect transport in the phloem?

Answer 1

a. With the stomata being blocked ,transpiration will not occur causing water to be held in the xylem.

b. Water from the xylem would enter the phloem causing sucrose-water mixture down toward the roots, where sucrose is unloaded thus increasing phloem transport.