MBI 111 Miami University Spring 19 Exam 3 questions with correct answers

Natural active immunity Answer -Antigens enter the body through infection -Active: Infected person's immune system responds -Provides long-term protection -Years to life-long due to memory B & T cells natural passive immunity Answer -Antibodies made by the mother's immune system -Are transferred from mother to fetus via placenta (IgG) or are transferred from mother to infant via breast milk (IgA) -Passive: Fetal/infant immune system is not involved -Provides short-term protection, weeks/months -Antibodies break down over time artificial active immunity Answer -Antigens enter the body through vaccination (immunization) -Active: Infected person's immune system responds -Provides long-term protection -Years to life-long due to memory B & T cells -vaccination artificial passive immunity Answer -Immunotherapy: Antibodies are infused into a person's body as a medical treatment -Used to neutralize the action of venoms or bacterial exotoxins or to block viral attachment to cells -Passive: Treated person's immune