Humoral Immunity Quiz
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Questions and Answers

What is the primary role of humoral immunity?

  • Protecting against intracellular pathogens
  • Protecting against extracellular pathogens (correct)
  • Activating T cells
  • Producing antigens
  • Which specific exotoxins does humoral immunity primarily target?

  • Anthrax and diphtheria
  • Tetanus and smallpox
  • Tetanus and anthrax (correct)
  • Smallpox and diphtheria
  • What is the lag period for the antibodies to be detectable in the serum after the primary immune response?

  • 7-10 days (correct)
  • 1-3 days
  • 3-5 days
  • 14-21 days
  • Which antibody is the first to be produced when exposed to infection for the first time?

    <p>IgM</p> Signup and view all the answers

    What is the secondary response in the context of immunity?

    <p>A second encounter with the same antigen or closely related one</p> Signup and view all the answers

    In the secondary response, what type of antibody response occurs compared to the primary response?

    <p>Rapid antibody response</p> Signup and view all the answers

    For which type of pathogens is cell-mediated immunity more important for protection?

    <p>Intracellular pathogens</p> Signup and view all the answers

    What does humoral immunity primarily target in terms of virulence?

    <p>Bacterial toxins</p> Signup and view all the answers

    How long does the serum antibody concentration continue to rise before declining after a primary immune response?

    <p>Several weeks</p> Signup and view all the answers

    Which antibody declines earlier than IgG after an infection?

    <p>IgM</p> Signup and view all the answers

    What type of immune response is elicited when an antigen enters the body for the first time?

    <p>Primary immune response</p> Signup and view all the answers

    What is the role of IgG or IgA following the production of IgM during an immune response?

    <p>Neutralizing pathogens</p> Signup and view all the answers

    During the secondary response, which antibody will be in higher concentration?

    <p>IgG</p> Signup and view all the answers

    What is the duration of the antibody response in the secondary response?

    <p>Long</p> Signup and view all the answers

    What is the primary function of antibodies?

    <p>Neutralize toxins and viruses</p> Signup and view all the answers

    What are the two main functions of antibodies?

    <p>Neutralize toxins and viruses; Opsonize microorganisms</p> Signup and view all the answers

    What is opsonization?

    <p>When antibodies make microorganisms more easily ingested by phagocytic cells</p> Signup and view all the answers

    What is the primary antibody in the fetus due to its ability to cross the placenta?

    <p>IgG</p> Signup and view all the answers

    What antibodies can be made by the fetus if an infection occurs?

    <p>IgG</p> Signup and view all the answers

    What are the processes done for the evaluation of humoral immunity?

    <p>Measuring amounts of IgG, IgM and IgA</p> Signup and view all the answers

    How does the host cell react when two or more antigens are administered at the same time?

    <p>By producing antibodies to all of them &gt; competition</p> Signup and view all the answers

    What are the tests used for the evaluation of humoral immunity?

    <p>Nephelometry and Immuno-electrophoresis</p> Signup and view all the answers

    What is the amount of antibody produced in the secondary response?

    <p>Significantly higher than primary response</p> Signup and view all the answers

    What cells are attributed to the rapid antibody response and higher levels than primary response?

    <p>Plasma cells</p> Signup and view all the answers

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