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The reason the complement system is called that is because it


A) is part of the inflammatory response.
B) helps other immune responses.
C) involves chemical barriers to entry.
D) produces T and B cells.
E) is composed of normal flora.

F) D) and E)
G) C) and D)

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The thymus cleanses the blood from the cardiovascular system of cellular debris and bacteria.

A) True
B) False

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What do eukaryotes have that prokaryotes do not?


A) ribosomes
B) enzymes
C) nucleus
D) DNA
E) cell membrane

F) B) and D)
G) A) and C)

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Inflammation is normally a self-limiting process.

A) True
B) False

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A bacterium that is shaped like a basketball would be called a


A) coccus.
B) bacillus.
C) spirillus.

D) None of the above
E) All of the above

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When stung by a bee,Jackie goes into anaphylactic shock.This should be quickly treated with


A) epinephrine.
B) histamine.
C) cytokines.
D) interferon.
E) a vaccination.

F) B) and E)
G) All of the above

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What two sites are involved in the production and maturation of T lymphocytes?


A) thyroid and tonsils
B) tonsils and thymus
C) thymus and bone marrow
D) bone marrow and thyroid
E) tonsils and bone marrow

F) A) and B)
G) C) and D)

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Which of the following is true about monoclonal antibodies?


A) They are produced by a variety of unrelated B cells.
B) They are produced by a clone derived from a single T lymphocyte.
C) They are produced by hybridomas.
D) They are composed of antibodies with a variety of different variable regions.
E) They are primarily produced by mast cells when a person has an allergy.

F) B) and E)
G) None of the above

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A prion consists of


A) DNA only.
B) protein only.
C) RNA only.
D) DNA plus protein.
E) DNA, RNA, and protein.

F) C) and E)
G) A) and C)

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In what way are lymphatic vessels unlike veins in the cardiovascular system?


A) one-way system
B) contain valves
C) take up excess tissue fluid
D) dependent upon skeletal muscle contraction

E) B) and D)
F) A) and D)

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A virus does not contain ribosomes.

A) True
B) False

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Which of the following is not a beneficial contribution of bacteria to humans?


A) decomposers in the environment
B) important in the wine, cheese and bread industry
C) useful in biotechnology
D) symbionts in the digestive tract
E) disease-causing agents

F) C) and D)
G) A) and B)

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How can normal flora be a barrier to entry?


A) They cause an inflammatory response that kills pathogenic bacteria upon contact.
B) They phagocytize any pathogenic bacteria that attempt to infect.
C) They use up nutrients and release wastes, preventing pathogenic bacteria from gaining a foothold.
D) They release histamine which causes blood vessels to become permeable.
E) They activate the complement system which punches holes in the invading pathogen.

F) D) and E)
G) A) and B)

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What do "having the measles" and being vaccinated against the measles have in common?


A) They are both forms of active immunity.
B) They are both forms of neutral immunity.
C) They are both forms of passive immunity.
D) They are both forms of an infection.
E) They are both forms of an immune deficiency.

F) None of the above
G) B) and C)

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All autoimmune diseases are caused by environmental factors such as viral infections.

A) True
B) False

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Which of the following contributes to the ability of a bacterium to resist antibiotics?


A) capsule
B) nucleoid
C) plasmid
D) fimbriae
E) flagellum

F) B) and E)
G) B) and C)

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If you were vaccinated against the mumps virus and later exposed to it,you would still be infected but it would not be as bad as if you had never been vaccinated.

A) True
B) False

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