Quiz: The Immune System

Any organism that causes disease like a virus or bacteria is called:

• Antibiotics

• Antibody

• Pathogen

• Phagocyte

Part of the body's defense against pathogens, in which fluid and white blood cells leak from blood vessels into tissues and destroy pathogens by breaking them down?

• Protective barrier

• Inflammatory response

• Immune response

• Stomach acid

A white blood cell that destroys pathogens by engulfing them and breaking them down is called:

• B-cell

• Phagocyte

• Antibody

• Antigen

Part of the body's defense against pathogens in which cells of the immune system react to each kind of pathogen with a defense targeted specifically at that pathogen is called:

• Protective Barrier

• Inflammatory Response

• Immune Response

• Stomach acid

A molecule that the immune system recognizes either as part of the body or as coming from outside the body:

• Antigen

• Antibodies

• Antibiotics

• Antipaths

A protein produced by B cells of the immune system that destroys pathogens is called:

• Antigens

• Antibodies

• T-cells

• Lymphocytes

The body's ability to destroy pathogens before they can cause disease is called:

• Tolerance

• Immunity

• Vaccine

• Inflammatory response

The process by which harmless antigens are introduced into a person's body to produce active immunity is called:

• Vaccination

• Immunity

• Passive Immunity

• Protective Barrier

A chemical that kills bacteria or slows their growth is called:

• Antivirals

• Vaccine

• Antibiotics

• Antigen

A disease caused by a living thing in the body:

• Noninfectious

• Infectious

• Allergies

• Vaccination