Water moves across the plasma membrane into or out of a cell
     Water moves across the plasma membrane into or out of a cell by osmosis when a high solute concentration opens an aquaporin channel water diffuses through a semipermeable membrane toward a lower solute concentration water diffuses through a semipermeable membrane toward a higher solute concentration there is an equal concentration on both sides of the membrane ATP hydrolysis drives aquaporin transport  
  
  Solution
Water diffuses through a semipermeable membrane toward a higher solute concentration.
Explanation:
Water moves from its high concentration (hypoosmotic solution= low solute conc.) to its low concentration (hyperosmotic solution= high solute conc.)

