It is commonly assumed that essentially all of the water in cells has the same ideal motional
and colligative properties as does water in bulk liquid state. This assumption is used in
studies of volume regulation, transmembrane movement of solutes and electrical potentials,
solute and solution motion, solute solubility and other phenomena. To get at the extent and
the source of non-ideally behaved water (an operational term dependent on the
measurement method), we studied the motional and colligative properties of water in cells …