The Oval Office exerts tremendous gravitational pull on its occupants. President Obama, in a fingers-crossed wish, has already predicted that the tug of the office eventually will move Trump into a more conventional orbit. Not so far.
Red blood cells are also known as erythrocytes. The red blood cells transport oxygen through the circulatory system to the cells and tissues of the body. In the cells, oxygen and glucose support glycolysis, the production of ATP (adenosine triphosphate). The red blood cells are filled with hemoglobin, the oxygen-carrying part of the red blood cell. Hemoglobin can also be spelled âhaemoglobin.â Each red blood cell contains 250 to 300 million molecules of hemoglobin. A molecule of hemoglobin is made up of one globin protein, with four iron-containing heme groups.
Erythrocyte: A cell that contains hemoglobin and can carry oxygen to the body. Also called a red blood cell (RBC). The reddish color is due to the hemoglobin. Erythrocytes are biconcave in shape, which increases the cell's surface area and facilitates the diffusion of oxygen and carbon dioxide. This shape is maintained by a cytoskeleton composed of several proteins. Erythrocytes are very flexible and change shape when flowing through capillaries. Immature erythrocytes, called reticulocytes, normally account for 1-2 percent of red cells in the blood.