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Chapter 12. Toxic Responses of the Immune System

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

a. lysozyme.

b. monocytes.

c. complement.

d. antibodies.

e. neutrophils.

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

a. platelets.

b. lymphocytes.

c. basophils.

d. erythrocytes.

e. monocytes.

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.

a. IgM.

b. IgE.

c. IgG.

d. IgA.

e. IgD.

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

a. IL-1 induces inflammation and fever.

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

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

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

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

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

a. A chromogen is added and color is detected.

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

c. Radioactively labeled cells are added to the solution.

d. Enzyme-tagged secondary antibodies are added.

e. Test sera are added.

The delayed hypersensitivity response (DHR) test does NOT:

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

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

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

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

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


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