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Hemoglobin: Oxygen Equilibrium in the Circulatory System
Transcript of Hemoglobin: Oxygen Equilibrium in the Circulatory System
concepts Graphics for Significance Bibliography Scientific Concepts Scientific Concepts Introduction Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to the tissues in the body. The pigment in hemoglobin is responsible for the red color of blood. Hemoglobin: oxygen equilibrium in circulatory system The top diagram represents all the bonds and atoms in the heme, or hemoglobin, molecule and the bottom diagram is a more common representation of a heme molecule Madeline's Links: http://www.brynmawr.edu/chemistry/Chem/Chem104lc/hemoglobin.html
http://www.news-medical.net/news/2005/08/17/12539.aspx The End! . By: Kelsey Cabrera and Madeline Schmitz What is Hemoglobin? How Does Hemoglobin Affect Health? Hemoglobin plays a significant part in your overall health. A high hemoglobin level can result in kidney complications, Polycythemia vera, and other serious health conditions. A low hemoglobin count can put you at risk for various cancers and, more commonly, a medical condition called Anemia. In any study of the human body, there is bound to be a scientific background to it. Hemoglobin is a very important protein in the body that binds to oxygen taken into the body and transports it to the tissue in our body. Hemoglobin is also called haemoglogin and is a type of protein that is found in the lungs. This protein attaches onto oxygen atoms that we, as humans, consume as we breathe. When Hemoglobin reacts with oxygen, it is then called oxyhaemoglobin. Once attached, the Oxyhaemoglobin travels throughout the body and distributes itself to our body's tissue and organs. After distributing these oxygen atoms, the Hemoglobin returns to the lungs to start the process over again. Now, inside hemoglobin are four "heme" groups. Each of these groups store a central iron that helps attach the oxygen molecule to the hemoglobin protein. Because there are four groups of central irons, a single protein of Hemoglobin can transport four molecules of oxygen. The way a hemoglobin protein determines if it will carry all four molecules of oxygen is reliant on the partial pressure of the oxygen consumed. Let's say the partial pressure of the oxygen happens to be 150 Torr. (a unit of pressure, 1 torr. = about 133.3 pascals) After mixing with the water vapor and other gasses in the lungs, the partial pressure lowers to 100 Torr. This graph shows the correlation between Anemia and higher risk for heart failure. Anemia is a type of blood deficiency that is caused by a low hemoglobin count.