CGIER 5 - Osmosis, Osmotic Equilibrium: Haemolysis and crenation Flashcards
What is Osmotic Pressure?
The exact pressure needed to prevent osmosis from taking place.
How many torrents are in 1 atm?
1 atm = 760 torrents
Define hypertonic.
When a RBC is placed in a hypertonic solution with a higher solute concentration outside the cell than inside the cell, water will move out of the cell and into the solution, causing the cell to crenate.
Define isotonic.
When a RBC is placed in a saline solution (0.9% NaCl solution), the RBC is isotonic to the solution, as there is no difference in osmolarity, and there is no change observed.
Define hypotonic.
When a RBC is placed in a hypotonic solution with a lower solute concentration outside the cell than inside the cell, water will rush from the solution and into the cell, causing haemolysis and eventually the cell to rupture.
