Humoral Immunity Quiz
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Questions and Answers

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

  • Macrophages
  • B cells
  • T cells
  • Memory cells (correct)
  • During the secondary response, which antibody will be in higher concentration?

  • IgA
  • IgM
  • IgE
  • IgG (correct)
  • What is the lag period in the primary response before antibodies are detected?

  • 1-2 days
  • 3-5 days
  • 14-21 days
  • 7-10 days (correct)
  • What is the lag period in the secondary response before antibodies are detected?

    <p>3-5 days</p> Signup and view all the answers

    What antibody type is produced in the primary response?

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

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

    <p>Relatively small</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 opsonization?

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

    What is the primary function of antibodies?

    <p>Protect against infectious agents or their products</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

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

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

    What type of immunity is humoral immunity?

    <p>Antibody-mediated immunity</p> Signup and view all the answers

    In the context of protection against pathogens, what does humoral immunity primarily protect against?

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

    Against what specific exotoxins does humoral immunity provide protection?

    <p>Tetanus and diphtheria toxins</p> Signup and view all the answers

    Which type of virulence is directly targeted by humoral immunity?

    <p>Pneumococcal polysaccharide capsules</p> Signup and view all the answers

    What is the primary immune response?

    <p>The response when an antigen enters the body for the first time</p> Signup and view all the answers

    About how many days is the lag period before antibodies are detectable in the serum after initial exposure to an infection?

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

    Which antibody is the first to be produced when exposed to infection for the first time, and what antibody follows it?

    <p>IgM; followed by IgG or IgA</p> Signup and view all the answers

    Which antibody declines earlier than IgG in the immune response?

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

    What happens to the serum antibody concentration after it continues to rise for several weeks?

    <p>It plateaus and remains at a steady level</p> Signup and view all the answers

    What is the secondary response in the context of immune reactions?

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

    What characterizes the antibody response in the secondary immune response compared to the primary response?

    <p>It is faster and at higher levels than the primary response</p> Signup and view all the answers

    What is the primary immune response?

    <p>The first reaction of B cells to a new pathogen</p> Signup and view all the answers

    Study Notes

    Antibody Response

    • Memory B cells are attributed to the rapid antibody response and higher levels than primary response.

    Secondary Response

    • IgG antibody is in higher concentration during the secondary response.

    Lag Period

    • The lag period in the primary response before antibodies are detected is around 7-10 days.
    • The lag period in the secondary response before antibodies are detected is minimal or absent.

    Primary Response

    • IgM antibody is produced in the primary response.
    • The amount of antibody produced in the primary response is limited.
    • The duration of the antibody response in the secondary response is longer than in the primary response.

    Antibody Function

    • Opsonization is the process by which antibodies mark pathogens for destruction by phagocytic cells.
    • The primary function of antibodies is to bind to specific pathogens and mark them for destruction.

    Humoral Immunity

    • Humoral immunity is a type of immunity that involves the production of antibodies to protect against pathogens.
    • Humoral immunity primarily protects against extracellular pathogens.
    • Humoral immunity provides protection against specific exotoxins.
    • Humoral immunity directly targets toxin-mediated virulence.

    Evaluation of Humoral Immunity

    • The processes done for the evaluation of humoral immunity include antibody detection and measurement.

    Fetal Immunity

    • The fetus can produce IgM antibodies if an infection occurs.

    Primary and Secondary Response

    • The primary immune response is the initial response to an infection, which is slower and less intense.
    • The secondary response is the rapid and more intense response to a subsequent infection.
    • The antibody response in the secondary immune response is characterized by a faster and more intense response compared to the primary response.
    • IgM is the first antibody to be produced when exposed to infection for the first time, followed by IgG.
    • IgM declines earlier than IgG in the immune response.
    • After rising for several weeks, the serum antibody concentration eventually declines to a steady-state level.

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    Description

    Test your knowledge about humoral immunity with this quiz. Questions cover topics such as the role of humoral immunity in protection against different pathogens and its specific targets like exotoxins and viral infections.

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