Account Options. Patents. A portable water purification system has a prefiler, a pumping unit, a reverse osmosis unit, a microbial control unit and a post filter for removing nuclear, biological, chemical and other contaminants from a water source.
1. T-cells mature (develop immunocompetence) in thymus 2. B-cells mature in bone marrow 3. Immunocompetent lymphocytes have unique receptors, committing them to binding with a specific antigen (all 10,000 + receptors are the same) 4. Lymphocytes become immunocompetent before exposure to antigens a.ingle antigen can mobilize many lymphocytes, stimulate production of many antibodies 3. Self-antigens-our cells would be antigens to someone else a. MHC proteins (Major Histocompatibility Complex) on cell surface b. MHC proteins bind to antigens in infected cells.
B lymphocytes are involved in humoral immunity, i.e. the production of antibodies. A small, mature B lymphocyte can be activated by the binding of an antigen to specific cell-surface receptors. This induces proliferation of the cell, resulting in an expanded clone of cells specific for that antigen.