Humoral Immunity Quiz
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Questions and Answers

What type of immunity is humoral immunity?

  • Passive immunity
  • Innate immunity
  • Cell-mediated immunity
  • Adaptive immunity (correct)
  • What does humoral immunity primarily protect against?

  • Exotoxin mediated diseases (correct)
  • Bacterial infections
  • Intracellular pathogens
  • Viral infections
  • Which antibody is the first to be presented when exposed to infection for the first time?

  • IgE
  • IgM (correct)
  • IgG
  • IgA
  • During the primary immune response, how long is the lag period before antibodies are detectable in the serum?

    <p>7-10 days</p> Signup and view all the answers

    What is the secondary response in immunity?

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

    What antibody declines earlier than IgG?

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

    Which antibody follows IgM when exposed to infection for the first time?

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

    What is humoral immunity primarily directed against?

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

    How long does it take for the serum antibody concentration to decline after reaching its peak during an immune response?

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

    Study Notes

    Humoral Immunity Overview

    • Humoral immunity is a component of the adaptive immune system that involves the production of antibodies by B cells.
    • It primarily protects against extracellular pathogens, including bacteria and viruses found in body fluids.

    Antibody Response

    • The first antibody to be produced during a primary infection is Immunoglobulin M (IgM).
    • In the primary immune response, there is a lag period of about 4 to 7 days before antibodies become detectable in the serum.

    Immune Response Types

    • The secondary immune response occurs upon re-exposure to the same pathogen, resulting in a faster and more robust antibody production.
    • Immunoglobulin G (IgG) follows IgM in the immune response, providing long-term protection.

    Antibody Dynamics

    • Immunoglobulin M (IgM) levels typically decline faster than IgG levels after an immune response peaks.
    • Serum antibody concentration will begin to decline after reaching its peak, notably over several weeks to months, depending on the immune response.

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    Description

    Test your knowledge of humoral immunity with this quiz covering topics such as antibody-mediated immunity, protection against different pathogens, and specific targets of humoral immunity. See how much you know about the role of humoral immunity in defense against diseases.

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