Immune System Review

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 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 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

When the body encounters a pathogen, antibodies are created that are specific to that pathogen. The next time the body encounters the pathogen, the response will be:

• Slower

• Faster

The diagram shows a pathogen, what is the arrow pointing to on the surface of the pathogen?

• a molecule called an antigen

• a molecule called an antibody

What function do memory cells have in our body?

• They help our immune system remember pathogens

• They store information in our short-term memory

• They send chemical signals from our blood to the brain

• All of the above

The healthy human immune system responds to pathogens with both specific and nonspecific processes. Which of the following models represents a nonspecific response?

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A 3 month old baby contracts a virus called whooping cough (pertussis) after receiving the first of a sequence of 3 necessary DPT vaccines designed to prevent 3 diseases (diphtheria, pertussis, and tetanus). The vaccines are given at 2, 4, and 6 months of age to allow the body to develop specific immunity against these diseases. After the infant recovered from the disease, the doctor informed the parents that from now on the infant would only need the DT (diphtheria, tetanus) part of the vaccine. Why does the infant only need the DT vaccine?

• The infant had the first of a series of vaccines which caused the disease

• The infant had the pertussis disease and has already produced antibodies against the disease.

• The infant had the first of a series of vaccines which protected him from getting the disease.

• The infant had the pertussis disease and will get diphtheria in the future.

What is the term for a strong response to a harmless antigen in the environment?

• An allergy

• Cell-mediated immunity

• An autoimmune disease

• Inflammatory response