Memory lymphocytes- last several months/years- help defend body from further infection by the same pathogen- body is said to be immuneafter infectionHow they work- Agglutination- Neutralization- Osponisation- LysisHighly specific- each binding site has particular shape that fits the one found on certain antigenAntigen binding site/antigen receptor- produced by B-lymphocyte- proteins found on :- surface of lymphocyte- released by lymphocyte into blood plasmaAntibodyproducehow?Antigen- foreign substance (usually protein) which stimulates immune responseRecognize specific pathogens and defend body against themmeansSpecified/targeted defense Immunity- body resistance to a pathogen which causes specific damage Immune systemT-lymphocytes- attack cells infected by pathogens- produce certain chemicals to coordinate immune responseB-lymphocytesLymphocytes- white blood cells found in lymph nodes and blood circulatory system2 rolesDefense systemTransport systemLymphatic System