If there is no net movement of water (solvent) between two solutions separated by a semipermeable membrane, the solutions are said to be _____ to each other
∙ Tonicity is a relative concentration of solutes in a solution which determines the direction of movement of water through a semipermeable membrane. It is a relative term.
∙ Hypotonic solution is the solution where solute concentration is less than that of a reference solution.
∙ An isotonic solution has the same concentration of solutes as that of reference solution separated by a semipermeable membrane and thus causes no net movement of water.
∙ A Hypertonic solution has more concentration of solutes than the reference solution.