Question 14
Systems
A student designs an experiment to demonstrate the presence of openings in the walls of xylem cells in plants. He takes a long stemmed, white chrysanthemeum
(flowering plant) and carefully cuts the stalk halfway up. He places each half of the stalk in a glass cylinder filled with water. Red dye is added to one cylinder, blue
dye is added to the other.
Which two plant systems are interacting in the experiment above?
