Osmosis & Dialysis

1. OsmosisOsmosis
OsmosisOsmosis
Passage of solvent from a dilute solution through Passage of solvent from a dilute solution through
a semipermeable membrane into a more a semipermeable membrane into a more
concentrated solutionconcentrated solution
Semipermeable MembraneSemipermeable Membrane
A thin layer of material that allows certain types A thin layer of material that allows certain types
of molecules to pass through while prohibiting of molecules to pass through while prohibiting
other molecules from passing throughother molecules from passing through
Dependent on size and geometry of moleculesDependent on size and geometry of molecules

2. OsmosisOsmosis

3. OsmosisOsmosis

4. Hypotonic SolutionHypotonic Solution
Red Blood Cell and Red Blood Cell and
Pure WaterPure Water
HypotonicHypotonic
Solution with lower Solution with lower
osmotic pressure osmotic pressure
(concentration) than (concentration) than
cellscells
Pure waterPure water
HemolysisHemolysis

5. Hypertonic SolutionHypertonic Solution
Red Blood Cells and Red Blood Cells and
Salt WaterSalt Water
HypertonicHypertonic
Solution with higher Solution with higher
osmotic pressure osmotic pressure
(Concentration) than (Concentration) than
cellscells
Salt WaterSalt Water
CrenationCrenation

6. Isotonic SolutionIsotonic Solution
Red Blood Cells and Red Blood Cells and
saline solutionsaline solution
Isotonic SolutionIsotonic Solution
Solution whose Solution whose
osmotic pressure is osmotic pressure is
equal to that of the equal to that of the
cell.cell.
5%(m/v) glucose5%(m/v) glucose

7. DialysisDialysis
DialysisDialysis
The process in which a semipermeable The process in which a semipermeable
membrane permits the passage of solvent, membrane permits the passage of solvent,
dissolved ions, and small molecules but dissolved ions, and small molecules but
blocks the passage of larger moleculesblocks the passage of larger molecules
KidneysKidneys
Complex dialyzing systemComplex dialyzing system

8. DialysisDialysis

9. DialysisDialysis