Antibodies antibodies are proteins that bind to antigens antigens -a protein or other molecule that causes antibody production antibody generators antibodies are produced by B cell B-cells type of lymphocyte matures in the bone marrow circulates in the blood and lymph system encounters an antigen-makes a specific antibody each B-cell produces only one antibody clonal B-cells are the lymphocytes that mediate the Humoral response (antibody-directed immunity). Antibodies - antibodies are proteins that bind to antigens - antigens - a protein or other molecule that causes antibody production antibody generators - antibodies are produced by B cell B-cells - type of lymphocyte - matures in the bone marrow - circulates in the blood and lymph system - encounters an antigen - makes a specific antibody - each B-cell produces only one antibody - clonal B- cells are the lymphocytes that mediate the Humoral response (antibody-directed immunity)