KEY: A. Allergies C. Autoimmune diseases. B. Immunodeficiencies. D. None of the
ID: 60658 • Letter: K
Question
KEY: A. Allergies C. Autoimmune diseases.
B. Immunodeficiencies. D. None of the key choices.
____25. Hay fever is an example.
____26. When the immune system loses its ability to recognize and tolerate self-antigens.
____27. Disease that results when the production or function of immune cells or complement
is abnormal.
____28. Allergens are involved in this reaction.
____29. Rheumatoid arthritis is an example.
____30. AIDS is an example.
____31. IgE triggered histamine release causes the symptoms in these.
____32. Which of the following is true of a “B” cell that responds to an initial antigen
challenge
A. enlargement and rapid mitosis.
B. production of plasma cells.
C. production of memory cells.
D. All of the above
____33. Autoimmune disorders may result form:
A. exposure of previously "hidden" self-antigens to sensitized immune cells.
B. cross-reaction of antibodies formed against foreign antigens with self-antigens.
mutation followed by the appearance of membrane proteins not previously
present.
D. All of the above.
____34. The immune response is involved with
A. destruction of cancer cells that arise within the body.
B. rejecting foreign tissue grafts.
C. disposing of cells that house viruses or other intracellular parasites.
D. disarming toxic chemicals.
E. all of the above.
____35. Which of the following is true of compliment fixation (activation)?
A. Causes cell surface lesions and lysis of the foreign cell to which it attaches.
B. Enhances chemotaxis by attracting neutrophils and macrophages.
C. Enhances phagocytosis.
D. Enhances the inflammatory response.
E. All of the above.
Explanation / Answer
25- allergy 26-autoimmune disorder , 27-immunodeficiencies. , 29- autoimmune disorder. 30- immunodeficiency , 31- allergy , 32- D , 33- D , 34-E , 35-E
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