Final answer:
The statement regarding the use of solute transport to create osmotic pressure, which directs water movement, is true. Osmosis involves water moving through semi-permeable membranes to equalize solute concentrations.
Step-by-step explanation:
The transport of solute molecules across an epithelium can indeed be used to create osmotic pressure, which in turn directs the movement of water molecules. This statement is true. In biology, this process is known as osmosis, where water moves across semi-permeable membranes from areas of lower solute concentration to areas of higher solute concentration to equalize concentrations on both sides. The process is facilitated by aquaporins, specialized protein channels that allow the rapid passage of water molecules while preventing solute molecules from the same movement. This selective permeability is fundamental to maintain the proper osmotic balance in living cells and is crucial for various physiological functions.