What is the name for molecules that provoke a specific immune response
The immune system protects the body from invading disease-causing organisms, or pathogens. Pathogens and other non-self molecules are antigens  foreign molecules recognized by the immune system, stimulating an immune response.The majority of infections by pathogens occurs in mucous membranes of our body. cells must interact with Helper T cells, other specialized white blood cells, to initiate antibody production. An important concept is that once activated, memory cells are produced that insure that a more rapid and stronger immune response can be made upon re-exposure to the same pathogen.