kailani searches the primary literature to ascertain how the proximity of the road could be impacting the height of the trees and discovers that road salt may be playing some role. she reads a scientific paper that describes a study in which artificial cells are used as a model for root cells. the artificial cells contain a substance that mimics the 2% na concentration of cytoplasm and their membranes contain aquaporins. the artificial cells are each submerged in a beaker of water. salt (na ) is added to the beaker to produce an na concentration of 4%. where does salt move? where does water move?