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MT AAB Immunology| 212 questions with 100% verified correct answers
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MT AAB Immunology 212 questions with100% verified correct answers
Which of the following is not an external defense mechanism of natural immunity that provides
the human body with a defense against invading microorganisms? - 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 - answer Skin, mucus, and body
fluids
Having an elevated temperature during an infection is an example of what type of immunity? -
answer Innate immunity
Which defense mechanism involves engulfing foreign particles? - answer Phagocytosis
Which one plays an important role in making bacteria susceptible to osmotic lysis? - answer
Lysozymes
Which one of the following is responsible for the nonspecific killing of tumor cells? - answer
Natural killer cells
Which one of the following is capable of eliciting an immune response? - answer Immunogen
Receiving a vaccination is an example of which type of immunity? - answer Artificial active
immunity
Which immune response is mediated by antibiotics? - answer Humoral immunity
Which one of the following is considered to be a primary lymphoid organ? - answer Thymus
,Which organs or systems are capable of responding to circulating antigens with the production
of specific lymphocytes and plasma cells? - answer Lymph nodes and spleen
Where are B lymphocytes and T lymphocytes produced? - answer Bone marrow
Which of the following cells are thymus-dependent? - answer T cells
Where does the differentiation of T cells occur? - answer Thymus
T cells are involved with which of the following? - answer Cell-mediated immunity
How can cell-mediated immunity be transferred to a normal individual? - answer With lymphoid
cells from a hypersensitive person
What is the main function of T helper cells? - answer Assist B cells in producing antibody
The production of antibodies is turned off by which cells? - answer Suppressor T cells
What are small polypeptides given off by T cells, which regulate the function of phagocytic cells
called? - answer Lymphokines
Which T cell acts specifically to kill tumor cells and virally infected cells? - answer Cytotoxic T
cells
All of the following are surface markers for T cells EXCEPT which one? - answer CD 16
All of the following are surface markers for T cells: - answer CD2, CD4, CD8
, Lymphoid stem cells that differentiate in the bone marrow are called what? - answer B cells
Which one of the following is associated with the humoral immune response? - answer Plasma
cells
Which cells are identified by the presence of surface immunoglobulin receptor? - answer B cells
Which B lymphocytes transform into cells that produce antibody molecules? - answer Plasma
cells
Which WBCs migrate to the tissue and become macrophages? - answer Monocytes
Which one of the following cells ingest and destroy bacteria, damaged host cells, and tumor
cells? - answer Macrophages
What is the main function of polymorphonuclear WBCs - answer Phagocytosis
What is the major histocompatibility complex? - answer The genes that control the expression
of the HLA antigens
The major histocompatibility complex is important in all of the following: - answer Autoimmune
disease associations, organ transplantation, paternity testing
The major histocompatibility complex is important in all of the following EXCEPT: - answer Acute
hemolytic transfusion reactions
Which of the following is not a class I gene product? - answer HLA-DR
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