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Chapter 12. Toxic Responses of the Immune System

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Which of the following cells or substances is NOT part of the innate immune system?

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a. lysozyme.

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b. monocytes.

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c. complement.

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d. antibodies.

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e. neutrophils.

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Myeloid precursor stem cells are responsible for the formation of all of the following EXCEPT:

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a. platelets.

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b. lymphocytes.

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c. basophils.

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d. erythrocytes.

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e. monocytes.

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When an Rh− mother is exposed to the blood of an Rh+ baby during childbirth, the mother will make antibodies against the Rh factor, which can lead to the mother attacking the next Rh+ fetus. This is possible because of which antibody’s ability to cross the placenta.

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a. IgM.

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b. IgE.

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c. IgG.

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d. IgA.

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e. IgD.

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Which of the following statements is FALSE regarding important cytokine function in regulating the immune system?

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a. IL-1 induces inflammation and fever.

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b. IL-3 is the primary T-cell growth factor.

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c. IL-4 induces B-cell differentiation and isotype switching.

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d. Transforming growth factor-β (TGF-β) enhances monocyte/macrophage chemotaxis.

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e. Interferon gamma (IFN-gamma) activates macrophages.

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Which of the following is NOT a step performed during an enzyme-linked immunosorbent assay (ELISA)?

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a. A chromogen is added and color is detected.

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b. The antigen of interest is fixed to a microtiter plate.

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c. Radioactively labeled cells are added to the solution.

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d. Enzyme-tagged secondary antibodies are added.

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e. Test sera are added.

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The delayed hypersensitivity response (DHR) test does NOT:

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a. evaluate memory T-cells’ ability to recognize a foreign antigen.

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b. evaluate memory T-cells’ ability to secrete cytokines.

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c. evaluate memory T-cells’ ability to proliferate.

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d. evaluate memory T-cells’ ability to lyse foreign target cells.

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e. evaluate memory T-cells’ ability to migrate to the site of foreign antigen.

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