Osmosis experiments
Osmosis is the movement of water particles across
a semi-permeable membrane (partially permeable membrane PPM)
from an area of high water concentration to an area of low water concentration. You can demonstrate this effect with VISKING
TUBING, which is partially permeable membrane. It is
sometimes called dialysis tubing as it is used in
kidney dialysis machines. From the animation it can be seen
that water level in the glass tube begins to rise or fall because water either enters or leaves through the visking
tubing by osmosis. Remember: Potato
Slices It can be seen from the animation
that potato slices, in pure water, swell up as water
enters their cells by osmosis.
However, in concentrated
sugar solution the potato slices shrink as water
leaves their cells as a result of osmosis.
Experiments to demonstrate osmosis.
Tags:Osmosis, Movement of water particles, Semi-permeable membrane, Cells