5 Written Questions

1. condition in which people who have survived exposure to a disease never develop it again
2. any substance that can cause an allergy
3. a substance produced by the body that destroys or inactivates an antigen that has entered the body
4. Immunity passively transferred across the placenta from mother to fetus
5. substance prepared from killed or weakened pathogens and introduced into a body to produce immunity

5 Multiple Choice Questions

1. Chemicals in the body that cause the symptoms of the allergic reaction
   1. AIDS
   2. Allergies
   3. Histamines
   4. Antigen
2. a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
   1. Antibody
   2. Antigen
   3. AIDS
   4. Vaccine
3. any disease-producing agent (especially a virus or bacterium or other microorganism)
   1. Allergen
   2. Pathogen
   3. Vaccine
   4. Antigen
4. substance that triggers an immune response
   1. Allergen
   2. Antibody
   3. Antigen
   4. Pathogen
5. a white blood cell that destroys pathogens by engulfing them and breaking them down
   1. Antigen
   2. Pathogen
   3. Vaccine
   4. Phagocyte

4 True/False Questions

1. Active Immunity → Immunity passively transferred across the placenta from mother to fetus

   True        False

2. Inflammation → substance that triggers an immune response

   True        False

3. Autoimmune Disease → overreaction of the immune system to antigens

   True        False

4. Allergies → overreaction of the immune system to antigens

   True        False