Matching Pairs MatchOnline version aosdjfh by Madelyn Whitlock 1 Immunity that must include exposure to antigen 2 Cells that seek out and immediately destroy target cells. 3 Protects against specific pathogens. it depends on activities of the lymphocytes. 4 Microscopic organisms that cause disease 5 Proteins that bind to antigens 6 Targets that identify any pathogen or foreign compound 7 Always works the same way against any type of invading agent 8 Cells that secrete cytokines 9 Type of White Blood Cell that is involved in specific defense 10 Immunity that does not require exposure to antigen Pathogen Antigens Specific defense Passive immunity Lymphocyte Antibody Nonspecific defenses Helper T Cells Cytotoxic T Cells (Killer T Cells) Active immunity