Karl Landsteiner's Research On Blood Types

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The universal blood type is blood that not containing A, B, and Rh antigens, this type of blood is known as type O negative. Individual with this kind of blood are considered an important blood donor because their blood can be donated to people of any blood type (Science 0nline, 2009).
Blood types are an important achievement of Karl Landsteiner’s research on blood. This research determines that there are three types of blood and its characteristics. The type A and B carry a specific and different protein or antigen while the third type does not contain either antigen. Karl Landsteiner was an important discover because he could also determine why some transfusions between human failed causing death. “An individual 's serum normally contains …show more content…

What features does the human body use to favor oxygen and not carbon dioxide binding to hemoglobin?
There are two ways to get molecular oxygen to be carry in the blood. The first one is bound to hemoglobin in red blood cells and dissolved in plasma. About 1.5 % of the oxygen transported in the blood is carried in the dissolved from because Oxygen is weakly soluble in water. To supply the amount of oxygen require by the body 98.5 % of the oxygen is passed from the lungs to tissue in a free chemical combination with hemoglobin. Hemoglobin “ is composed by four polypeptide chains, each bound to an iron-containing heme goup” ( Elaine,N.,Katja H, 2014). Iron atoms from the hemoglobin bind oxygen. Four molecules of O2 are combine with each hemoglobin molecule. This oxygen that is loading “ is rapid and reversible” ( Elaine,N.,Katja H, …show more content…

As a result of that need in the tissues hemoglobin ensure that oxygen is delivered where it is needed.
At resting level tissues at a Po2 of 40mm Hg. Hb is 75% saturated only 23% of O2 carried by HB is released. However in an active tissues the Po2 is lower at Po2 of 20 mm Hg is only 40 % saturated. So 35% of 02 must be unloaded for tissue exercise. ( Elaine,N.,Katja H, 2014).
Carbon dioxide binding to hemoglobin is determine by the fact that Carbon dioxide transport in the erythrocytes don’t struggle with oxyhemoglobin transport as a result that Co2 binds to the animo acids of globin while oxygen binds to heme.
In the lungs Pco2 of the alveolar air is lower than in the blood causing a rapidly dissociates of Carbon dioxide from hemoglobin . While in tissues Co2 readily binds with hemoglobin because Pco2 is higher than in the blood.

To conclude Co2 + H2O----- H2CO3 ------ H +HCO3
When Co2 is present Hb-o2 unloads more O2 faster so O2 is more available for tissues this is known a Bohr effect. “The amount of oxygen carried by hemoglobin depends on the Po2 available locally,This relationship ensures optimal oxygen pickup and delivery.” (Elaine,N.,Katja H,

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