Hemoglobin Hemoglobin is a molecule comprised of four subunits. - TopicsExpress



          

Hemoglobin Hemoglobin is a molecule comprised of four subunits. Each subunit contains an iron containing pigment (heme) and a protein (globulin). There are two types of subunits, alpha and beta. Each gram of hemoglobin can carry 1.34 ml of oxygen. The oxygen carrying ability of blood is directly proportional to its hemoglobin concentration. The numbers of red blood cells does not indicate bloods oxygen content because some cells may contain more hemoglobin than others. Hemoglobin determination is used to screen for anemia, to identify the severity of anemia, and to assist in evaluating the patients response to anemia therapy. Hemoglobin also serves as an important pH buffer in the extracellular fluid.
Posted on: Tue, 23 Dec 2014 20:02:24 +0000

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