Chapter 13 Collection of Blood Samples Form

Instructions and help about Chapter 13 Collection Of Blood Samples

all right so in this video we're in look at chapter 13 which is disorders of red blood cells so remember red blood cells are essentially a type of cell that black most organelles and rather just contain a lot of hemoglobin in fact each works a CH red blood cell has about 250 million molecules of hemoglobin and hemoglobin is a globular protein made of alpha and beta chains the alpha and beta chains each contain a heme group in the heme is essentially a organic molecule that contains a central iron atom now this iron is essentially what can bind with gases like oxygen carbon dioxide and carbon monoxide and because our hemoglobin has four heme groups the question here says how many molecules of oxygen can be carried by one molecule of hemoglobin well if each hemoglobin molecule has four heme then you can carry four oxygen atoms per hemoglobin molecule in fact each red blood cell contains 250 million molecules of hemoglobin so that's about a billion molecules molecules of oxygen that can b