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.
Question: Hemoglobin, the red blood protein responsible for oxygen transport, binds about 1.34cm^3 of oxygen per gram. Hemoglobin, the red blood protein responsible for oxygen transport, binds about 1.34cm^3 of oxygen per gram. Normal blood has a hemoglobin concentration of 150 g dm^-3. Hemoglobin in the lungs is about 97 per cent saturated with oxygen, but in the capillary is only about 75 per cent saturated. What volume of oxygen is given up by 100cm^3 of blood flowing from the lungs in the capillary? (1.34cm^3/g is the 97% bingding of O2 to hemoglobin per gram for blood in the lungs).