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 (A)</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 (A)</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 (A)</p> Signup and view all the answers

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

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

What does humoral immunity primarily target in terms of virulence?

<p>Bacterial toxins (D)</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 (A)</p> Signup and view all the answers

Which antibody declines earlier than IgG after an infection?

<p>IgM (B)</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 (B)</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 (D)</p> Signup and view all the answers

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

<p>IgG (C)</p> Signup and view all the answers

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

<p>Long (B)</p> Signup and view all the answers

What is the primary function of antibodies?

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

What are the two main functions of antibodies?

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

What is opsonization?

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

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

<p>IgG (A)</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 (B)</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 (A)</p> Signup and view all the answers

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

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

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

<p>Significantly higher than primary response (C)</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 (D)</p> Signup and view all the answers

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