Though strictly speaking, an antibody is not the same as an immunoglobulin; B cells can produce two types of immunoglobulins-surface immunoglobulins, which are B cell receptors; and secreted immunoglobulins, which are antibodies. So antibodies are one of two classes of immunoglobulins.ach antibody binds to a specific antigen; an interaction similar to a lock and key. An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.
About 95 percent of the dry weight of the red blood cell consists of hemoglobin, the substance necessary for oxygen transport. Hemoglobin is a protein; a molecule contains four polypeptide chains (a tetramer), each chain consisting of more than 140 amino acids.
Hemoglobin is an iron-protein compound in red blood cells that gives blood its red color. Hb is a conjugated protein present in RBCs. It carries oxygen from the lungs to the tissue cells, and carbondioxide-the gaseous waste-from the cells to the lungs.bout 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin.iron is a component of certain proteins, essential for respiration and energy metabolism so it is also a source of iron compound.