EXERCISES, LESSON 5
INSTRUCTIONS: Answer the following exercises by marking the lettered response that
best answers the question or completes the incomplete statement.
After you have completed all of these exercises, turn to "Solutions to Exercises" at
the end of the lesson and check your answers. For each exercise answered incorrectly,
reread the material referenced with the solution.
1.
Resistance to a certain infection or disease is called:
a. Antigen.
b. Antitoxin.
c.
Immunity.
d. Antibody.
2.
If a substance is injected into the body to stimulate the production of antibodies,
the resulting immunity is called:
a. Active.
b. Latent.
c.
Passive.
d. Refractory.
3.
Immunity that affords short-term protection to a person exposed to an infectious
disease is called:
a. Active immunity.
b. Passive immunity.
c.
Natural immunity.
d. Antigenic immunity.
MD0913
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