Solutions with lower solute concentration than the cytoplasm are called____________.

The solution external to the cell is recognised as isotonic, hypotonic, or hypertonic. Solutions with lower solute concentration than the cytoplasm are called hypotonic. When a cell is placed in hypotonic solution, solvent enters into the cell by the process called endosmosis. When the animal cells like erythrocytes are placed in hypotonic solution, they swell rapidly and burst behind the ruptured membranes called ghosts. In plant cells, the rupturing is prevented by the rigid cell wall.