blood cells whose primary function is oxygen transport are what
Red Blood Cells. Red blood cells, also called erythrocytes, are the most abundant cell type in the blood. Other major blood components include plasma, white blood cells, and platelets. The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs.A red blood cell has what is known as a biconcave shape. Both sides of the cell's surface curve inward like the interior of a sphere.ed blood cells are also important in determining human blood type. Blood type is determined by the presence or absence of certain identifiers on the surface of red blood cells. These identifiers, also called antigens, help the body's immune system to recognize it's own red blood cell type.