QUESTIONS WITH VERIFED SOLUTIONS
LATEST UPDATE GRADED A+
Which organs or systems are capable of responding to circulating
antigens with the production of specific lymphocytes and plasma
cells? --CORRECT ANSWER--Lymph nodes and spleen
Where are B lymphocytes and T lymphocytes produced? --
CORRECT ANSWER--Bone marrow
Which of the following cells are thymus-dependent? --CORRECT
ANSWER--T cells
Where does the differentiation of T cells occur? --CORRECT
ANSWER--Thymus
T cells are involved with which of the following? --CORRECT
ANSWER--Cell-mediated immunity
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,How can cell-mediated immunity be transferred to a normal
individual? --CORRECT ANSWER--With lymphoid cells from a
hypersensitive person
What is the main function of T helper cells? --CORRECT ANSWER-
-Assist B cells in producing antibody
The production of antibodies is turned off by which cells? --
CORRECT ANSWER--Suppressor T cells
What are small polypeptides given off by T cells, which regulate the
function of phagocytic cells called? --CORRECT ANSWER--
Lymphokines
Which T cell acts specifically to kill tumor cells and virally infected
cells? --CORRECT ANSWER--Cytotoxic T cells
All of the following are surface markers for T cells EXCEPT which
one? --CORRECT ANSWER--CD 16
All of the following are surface markers for T cells: --CORRECT
ANSWER--CD2, CD4, CD8
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,Lymphoid stem cells that differentiate in the bone marrow are called
what? --CORRECT ANSWER--B cells
Which one of the following is associated with the humoral immune
response? --CORRECT ANSWER--Plasma cells
Which cells are identified by the presence of surface immunoglobulin
receptor? --CORRECT ANSWER--B cells
Which B lymphocytes transform into cells that produce antibody
molecules? --CORRECT ANSWER--Plasma cells
Which WBCs migrate to the tissue and become macrophages? --
CORRECT ANSWER--Monocytes
Which one of the following cells ingest and destroy bacteria, damaged
host cells, and tumor cells? --CORRECT ANSWER--Macrophages
What is the main function of polymorphonuclear WBCs --CORRECT
ANSWER--Phagocytosis
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, What is the major histocompatibility complex? --CORRECT
ANSWER--The genes that control the expression of the HLA
antigens
The major histocompatibility complex is important in all of the
following: --CORRECT ANSWER--Autoimmune disease
associations, organ transplantation, paternity testing
The major histocompatibility complex is important in all of the
following EXCEPT: --CORRECT ANSWER--Acute hemolytic
transfusion reactions
Which of the following is not an external defense mechanism of
natural immunity that provides the human body with a defense against
invading microorganisms? --CORRECT ANSWER--Bursa of
Fabricius
All of the following are external defense mechanisms of natural
immunity that provides the human body with a defense against
invading microorganisms --CORRECT ANSWER--Skin, mucus, and
body fluids
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