Q1. Glucose is added to cells and the rate of glucose transport is plotted against glucose concentration. In the presence of the galactose derivative 6-O-benzyl-D-galactose, the curve is shifted to the right. What variety of agent is 6-O-benzyl-D-galactose?

Q2. Clarify the roles of transpiration and “pushing” from water pressure in roots relative to water and mineral movement in the xylem. What are the roles of plasmodesmata and aquaporins?