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