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Section 4

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alexamartin's version from 2017-10-23 10:32

Section

Question Answer
27) MHC Class II proteins carrying non-self antigens are recognized by and trigger the activation of: A) Natural killer cells B) B cells C) Plasma cells D) CD4 T cells E) CD8 T cellsD) CD4 t cells
28. Which of the following is not an antigen-presenting cell? A) T lymphocyte B) Macrophage C) B lymphocyte D) Dendritic cell E) All of these are antigen-presenting cellsA
29. Which of the following functions are performed by Helper T cells? a. Help activate T and B cells b. Induce proliferation of T and B cells c. Release cytokines recruit other immune cells d. Amplify responses of innate immune system e. All of theseE
30. Without __________ there would be no adaptive immune response. a. Complement b. B cells c. Macrophages d. Helper T cellsD
31. Select the correct definition about tissue grafts. a. Isografts are between identical twins. b. Allografts are between different species. c. Xenografts are between individuals of the same species. d. Autografts are between two genetically identical individuals.A
32. True or false: Allografts are generally better tolerated than autografts.FALSE
33. HIV targets _______ cells, which are also termed _______. a. CD4, helper T cells b. CD4, cytotoxic T cells c. CD8, helper T cells d. CD8, cytotoxic T cellsA
34. True or false: AIDS stands for "Autoimmune Deficiency Syndrome"A
35. This type of disease results from the inability of the immune system to distinguish self- from nonself-antigens. a. Autoimmune disease b. Immunodeficiency c. Anaphylaxis d. AllergyA
36. The most common type of immediate hypersensitivity is ________. a. Autoimmune disease b. Immunodeficiency c. Delayed d. AllergyD
37. The antibody that becomes bound to mast cells and basophils and causes the cells to release histamine and other chemicals is ________.IgE
38. To counteract the events of anaphylactic shock, _________ is usually administered. a. Histamine b. IgE c. Epinephrine d. Nitric oxideC
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