Page 13 - Osmosis and Diffusion - FULL
P. 13
L
O - T D W
Importance of Osmosis
All cells need water to carry cell membrane
cell membrane
out life functions. The
movement of water into
and out of cells depends on
osmosis.
Osmosis is the diffusion
of water through a
semi-permeable cell
membrane from a higher
water concentration (dilute
solution) to a lower water
concentration (more
concentrated solution).
O R
B
C
E
ects of di
erent concentrations of water on red blood cells
(animal cells)
even concentration low water high water
of water inside and concentration concentration
outside of cell outside of cell outside of cell
normal This cell has shrunk This cell has swollen
red blood cell because water has because water has
moved out of it. moved into it.
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