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BOC Immunology Study Guide Exam And All Actual Answers.
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b - Answer 2. Cells known to be actively phagocytic include: a. neutrophils, monocytes, basophils b. neutrophils, eosinophils, monocytes c. monocytes, lymphocytes, neutrophils d. lymphocytes, eosinophils, monocytes c - Answer 20. Nonspecific killing of tumor cells is carried out by a....

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  • September 4, 2024
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  • 2024/2025
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BOC Immunology Study Guide Exam
And All Actual Answers.
b - Answer 2. Cells known to be actively phagocytic include:

a. neutrophils, monocytes, basophils

b. neutrophils, eosinophils, monocytes

c. monocytes, lymphocytes, neutrophils

d. lymphocytes, eosinophils, monocytes



c - Answer 20. Nonspecific killing of tumor cells is carried out by

a. cytotoxic T cells

b. helper T cells

c. natural killer cells

d. antibody and complement



c - Answer 21. When a NK cells comes in contact with a cell expressing MHC class I proteins, what
action will result?

a. perforins released

b. granzymes released

c. inhibition of killing

d. cytotoxic mechanism



d - Answer 22. MHC class III genes code for?

a. antigens

b. antibodies

c. lymphocytes

d. complement

,b - Answer 23. Which of the following is an important cellular mediator of immune complex tissue
injury?

a. mast cell

b. neutrophil

c. basophil

d. eosinophil



c - Answer 26. C3b and Fc receptors are present on

a. B lymphocytes

b. monocytes

c. B lymphocytes and monocytes

d. neither B lymphocytes and monocytes



a - Answer 29. An immunofluorescence test using reagent antibody directed against the CD3 surface
marker would identify which of the following cell types in a sample of human peripheral blood?

a. all mature T lymphocytes

b. T helper lymphocytes only

c. cytotoxic T lymphocytes only

d. T regulatory cells only



c - Answer 33. It is important to note that when an infant is born, levels of specific antibody of the
following class are used to indicate neonatal infection

a. IgA

b. IgG

c. IgM

d. IgD



c - Answer 34. The immunoglobulin classes MOST commonly found on the surface of circulating B
lymphocytes in the peripheral blood of normal persons are

, a. IgM, IgA

b. IgM, IgG

c. IgM, IgD

d. IgM, IgE



a - Answer 35. Antibody class and antibody subclass are determined by major physiochemical
differences and antigenic variation found primarily in the

a. constant region of heavy chain

b. constant region of light chain

c. variable regions of heavy and light chains

d. constant regions of heavy and light chains



b - Answer 36. The ratio of kappa to lambda light chain-producing cells in normal individuals is

a. 1:1

b. 2:1

c. 3:1

d. 4:1



b - Answer 39. Treatment of IgG with papain results in how many fragments from each immunoglobulin
molecule?

a. 2

b. 3

c. 4

d. 5



d - Answer 40. The immunoglobulin class associated with immediate hypersensitivity or atopic
reactions is

a. IgA

b. IgM

c. IgD

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