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BIO256 Exam 4; Questions and Answers 100% Solved
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BIO256 Exam 4; Questions and Answers 100% Solved
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BIO256 Exam 4; Questions and Answers 100% SolvedSelect the correct statement about antigens.
A. One antigen may have many different antigenic determinants and may therefore cause the
formation of more than one antibody.
B. "Self-antigens" is another name for incomplete antigens.
C. The largest type of antigen is called a hapten.
D. Only small antigens exhibit reactivity. Correct Ans-A
Natural killer cells
A. are also called dendritic cells.
B. are cells of the specific immune system.
C. are a type of phagocyte.
D. can kill cancer cells before the immune system is activated. Correct Ans-D
Which causes mediators of the immune response to be released?
, BIO256 Exam 4; Questions and Answers 100% Solved
A. tissue damage
B. vasodilation
C. phagocytosis
D. increased vascular permeability Correct Ans-A
B cells respond to the initial antigen challenge by
A. forming of a large number of cells that are unlike the original B cell.
B. reducing its size.
C. becoming natural killer cells.
D. producing antigen-specific antibodies. Correct Ans-D
The only immunoglobulin to exist as a pentamer (containing 5 subunits) is
A. IgG.
B. IgA.
C. IgM.
, BIO256 Exam 4; Questions and Answers 100% Solved
D. IgD. Correct Ans-C
________ ultimately determine(s) what specific foreign substances our adaptive immune
system will be able to recognize and resist.
A. Enzymes present at the time of the invasion
B. The type of antigen
C. Memory cell production
D. Our genes Correct Ans-D
The primary adaptive immune response
A. is another name for immunological memory.
B. occurs when memory cells are stimulated.
C. has a lag period while B cells proliferate and differentiate into plasma cells.
D. occurs more rapidly and is stronger than the secondary response. Correct Ans-C
, BIO256 Exam 4; Questions and Answers 100% Solved
The system specifically recognizing foreign molecules and acting to immobilize, neutralize, or
destroy them is the
A. innate immune system.
B. adaptive immune system.
C.integumentary system.
D. lymphatic system. Correct Ans-B
Phagocyte mobilization involves
A. eosinophils as the most active phagocyte.
B. the extension of pseudopods for encompassing bacteria.
C. mainly neutrophil and macrophage migration into inflamed areas.
D. the digestion of microbes inside phagolysosomes. Correct Ans-C
Which of the following is NOT a function of the inflammatory response?
A. sets the stage for repair processes
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