1. Hemolysis Naseem AL-Mthray

2. Hemolysis Hemolysis is the breakage of the red blood cell’s (RBC’s) membrane, causing the release of the hemoglobin and other internal components into the surrounding fluid (blood plasma). Naseem AL-Mthray

3. Hemolysis Hemolysis may occur in vivo or in vitro (inside or outside the body) Naseem AL-Mthray

4. Hemolysis Hemolysis can be caused by: 1- Chemical substances such as chloroform- alcohol.. Naseem AL-Mthray

5. Hemolysis Hemolysis can be caused by: 2- Toxins such as snakes toxins. Naseem AL-Mthray

6. Osmosis Osmosis is the movement of water molecules across cell membrane from an area of low water concentration to an area of higher concentration. Naseem AL-Mthray

7. Types solutions When you put an animal or plant cell into a liquid containing water one of three things will happen: Naseem AL-Mthray

8. Types solutions 1- Isotonic If the medium is exactly the same water concentration as the cell there will be no net movement of water across the cell membrane. The cell will stay the same size. Naseem AL-Mthray

9. Types solutions 2- Hypertonic If the medium has a higher concentration of water than the cell (a very concentrated solution) the cell will lose water by osmosis. The cell will shrink. Naseem AL-Mthray

10. Types solutions 3- Hypotonic If the medium has a lower concentration of water than the cell (a very dilute solution) the cell will gain water by osmosis. The cell will swell. Naseem AL-Mthray

11. Osmosis in RBC a) Isotonic (Osmotic pressures being equal)) b) Hypotonic (Osmotic pressure lower than the cell)) (c) Hypertonic(Osmotic pressure higher than the cell) Naseem AL-Mthray

12. Osmosis in RBC Naseem AL-Mthray

13. Osmosis in RBC Naseem AL-Mthray

14. Osmosis in RBC 0.9% NaC l dist. H 2 O (0% Salt) Sea water (3% salt) Red blood cells in different solutions and the effect of osmosis in each. Naseem AL-Mthray