Non-specific response - Response is immediate and the same for all pathogens, Specific response - Response is slower and specific for each pathogen, Phagocytosis - Example of non-specific response whereby pathogens are engulfed, B lymphocytes - Type of WBC that carries out the antibody-mediated or humoral response. Mature in Bone marrow., T lymphocytes - Type of WBC that carries out the cell-mediated response. Mature in Thymus gland., Lysozymes - Enzymes secreted by lysosomes to break down bacterial cell walls by hydrolysis, Cell-mediated immunity - Lymphocytes respond to organism's own cells that are infected by non-self material., Antigen-presenting cells - Cells that display foreign antigens on their surface., Cytotoxic/Killer T cells - Kill abnormal cells and body cells that are infected by pathogens. Release perforin that makes holes in membrane, T helper cells - Have receptors that fit foreign antigens and co-ordinate immune response, B/T memory cells - Stay in blood/tissue fluid long term and respond to secondary infection quickly., Humoral or antibody-mediated immunity - Involves the use of antibodies to fight infection., B plasma cells - Secrete antibodies into blood plasma. Survive a few days but can make 2000 antibodies. , Monoclonal antibodies - B cells divide by mitosis making clones of themselves which all produce the specific antibody. , Antigen - A molecule that triggers an immune response., Antibody - A protein produced by lymphocytes in response to a specific antigen., Agglutination - When antibodies clump bacterial cells together,

B/T lymphocytes and Antibodies

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