In a beaker of pure water, what is the water potential? Does water potential become more positive or more negative as you add solute to it? Put pressure on it? Add it to dry clay? Add acid to it? In each case, which water potential component is changing?

An H+ ion is smaller than an H2O molecule, and a glycerol molecule, a three-carbon alcohol, is much larger. Both readily dissolve in H2O. Why do aquaporins fail to transport H+ whereas some can transport glycerol?

A of Y, = 0.2 Y, = -0.7 Y, = 0.8 Y, = -0.9 || Based on this diagram of two plant cells, what direction do you expect water to move? (Calculate the water potentials for each cell to determine the direction) Select one: O a. A to B O b. B to A O c. No movement O d. You cannot tell based on this information 口

Calculate the ml/m^2 for a leaf with the surface area of .004m^2 and .30 ml water displaced