| A control experiment was performed for each group, in which cells were perfused with isosmotic media. |
| The classification of fluids into isosmotic, hyperosmotic, and hypoosmotic is based on whether the solutions have a higher or lower osmolality than body fluids. |
| Replacement of NaCl for isosmotic sorbitol produced a slight depolarization of the membrane. |
| Presumably, mosquitofish are like other secondary-division freshwater fishes, in that their blood is isosmotic with seawater diluted to 7-10 ppt. |
| Control experiments confirmed that no volume change occurred following perfusion of cells with isosmotic media. |
