Chapter 17 Questions

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The specificity of an antibody is due to:

the L chains.
the constant portions of the H and L chains.
its valence.
the variable portions of the H and L chains.
the H chains.
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Terms in this set (24)
The FIRST antibody B cells make during primary response to an infection is: IgA. IgE. IgM. IgG.IgMA person who has measles will develop ________ immunity. naturally acquired passive artificially acquired passive artificially acquired active naturally acquired activenaturally acquired activeWhat type of immunity is conveyed when exposed individuals are given antibodies by injection? artificially acquired passive immunity naturally acquired passive immunity artificially acquired active immunity naturally acquired active immunityartificially acquired passive immunityA person has been sick less than one week and comes to the clinic with fever and yellow skin. The doctor requests a serology test for hepatitis A. Which type of antibodies should be detected during this acute infection? IgG IgD IgE IgA IgMIgMA 60-year-old patient presents at the clinic with a painful rash on the left side of his torso. The doctor orders a serology test against herpes zoster virus. What type of antibodies should be measured? IgD IgE IgA IgM IgGIgGWhich type of antibodies cross the placenta? IgE IgG IgA IgD IgMIgGPatients infected with HIV and with active AIDS have low levels of CD4+ cells, which are TH cells. These patients are immunodeficient because ______________ to fight off infections they do not have helper cells to promote B cells and cytotoxic T cells to mature they do not have enough cells to make antibodies they are missing natural killer cells they cannot make IgM antibodiesthey do not have helper cells to promote B cells and cytotoxic T cells to matureMacrophages can recognize antibodies bound to the surface of bacteria by recognizing _______ on immunoglobulins. This process induces phagocytosis and is called ____________ Fc regions, antibody-dependent cellular cytotoxicity (ADCC) Fc regions, opsonization Fc regions, agglutination Fab regions, agglutination Fab regions, opsonizationFc regions, opsonizationIn Figure 17.1, which letter on the graph indicates the patient's secondary response to a repeated exposure with the identical antigen? c a e bcOpsonizationantibody enhancement of phagocytosisAgglutinationAntibody clumping of bacteriaNeutralizationantibodies binding to toxins to interfere with functionADCCAntibody dependent cellular killingMembrane attack lysisbound antibody activating complement