Accepts electrons from cytochrome c, ultimately transferring them to oxygen, forming H2O. in the process, 2 protons are pumped across the membrane. Complex IV is a terminal oxidoreductase, meaning that it transferes the elctrons to the terminal electron acceptor, which, in this case, is O2.
White blood cells called lymphocytes originate in the bone marrow but migrate to parts of the lymphatic system such as the lymph nodes, spleen, and thymus. There are two main types of lymphatic cells, T cells and B cells.
T lymphocytes are a key part of cell-mediated immunity, and about 30 to 40 percent of them are found in the lymph nodes and spleen. The presence of microbes and antigens inside of the body usually triggers the body's immune response. Lymphocytes are a type of white blood cell produced by the immune system.