Water Balance in Red Blood Cells
Solutions 0.2 % NaCl 0.6 % NaCl 2.0 % NaCl
Red Blood Cells (RBCs) are
RBCs are placed in a
placed in a hypertonic solution,
and all the water rushes into the RBCs are placed in a
Water moves into
cell. The cell bursts (lyses) hypotonic solution, and
and out of the cells
when it takes in more water all the water rushes out
freely. The cell
than it can hold. No cell are of the cell. The cell
maintains its original.
intact. Solution appears red and shrivels and all that is left
clear. Cell material dissolved. is the cell membrane.