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BIOS 260-chapter 12 module Questions and Answers 100% Solved
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BIOS 260-chapter 12 module Questions and Answers 100% Solved
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BIOS 260-chapter 12 module Questions and Answers100% Solved
Which parts of an antibody combine to form an antigen-binding site? Correct Ans-The
variable region of a heavy chain and the variable region of a light chain
How are lymphatic capillaries different from blood capillaries? Correct Ans-Lymphatic
capillaries have endothelial cells that overlap, whereas blood capillaries have endothelial cells
that are bound tightly together.
During an inflammatory response, histamine is released. What is the effect of histamine
within the infected area? Correct Ans-Promotes dilation of blood vessels
Which of the following types of immune cells directly kill foreign or infected cells that display
a specific antigen? Correct Ans-Cytotoxic T cells
Which of the following are the most common indicators, or cardinal signs, of acute
inflammation? Correct Ans-Heat
Pain
, BIOS 260-chapter 12 module Questions and Answers
100% Solved
Redness
Swelling
Which statement is correct regarding primary and secondary humoral responses? Correct
Ans-The secondary response to a particular antigen is faster and larger than the primary
response to that same antigen.
The substance produced by virus-infected cells that helps other cells resist viral infection is
__________. Correct Ans-interferon
Saliva and lacrimal secretions contain __________, an enzyme that destroys bacteria.
Correct Ans-lysozyme
Where do B cells become immunocompetent lymphocytes? Correct Ans-Red bone marrow
Which of the following areas is drained by the right lymphatic duct? Correct Ans-Right arm
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