BIOL 103 Lecture Notes - Sickle-Cell Disease, Red Blood Cell, Partial Pressure
Document Summary
Blood clotting see diagram in notebook, and figure 44. 8 from text to understand further. When clot is no longer needed (to block tear in blood vessel), body dissolves it. Some activations require ca+, some require vitamin k. Warfarin rat poison activates vitamin k, which we use to kill rats (causes a brain hemorrhage causing a stroke) Human body changed the shape and got rid of nucleus of red blood cell; membrane has glycoprotein. 300 million of these subunits in each blood cell; each cell can contain 10^9 of oxygen. At lungs, partial pressure of oxygen is high. When we use up oxygen, partial pressure of o2 decreases (fig 44. 15) Clicker: hemoglobin molecules in rbcs are most efficient as carrying oxygen in blood. Any co2 in hemoglobin released in the lungs because partial pressure of co2 in lungs is very low. Not only does o2 cross respiratory organ cells, but also rbc membrane.
