The value for  $\Psi$  in root tissue was found to be -3.3 bars.  If you take the root tissue and place it in a 0.1 M solution of sucrose at 20 $\degree$ C in an open beaker, what is the  $\Psi$  of the solution, and in which direction would the net flow of water be?

A plant cell with a $\Psi s$  of -7.5 bars keeps a constant volume when immersed in an open-beaker solution that has a  $\Psi s$  of -4 bars.  What is the cells  $\Psi p$  ?

At 20 $\degree$ C, a cell containing 0.6M glucose is in equilibrium with its surrounding solution containing 0.5M glucose in an open container.  What is the cell's  $\Psi p$  ? 

What is the $\Psi s$   of a 1.0M sugar solution at 22 $\degree$ C under standard atmospheric conditions?

At 22 $\degree$ C, zucchini cores are measured and determined to have a sucrose concentration of 0.36M. What is the $\Psi s$   of these cells and in which direction will the net flow of water be?

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration