Antigens and Antibodies Quiz
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Questions and Answers

Which of the following is true about antigens?

  • Antigens are proteins produced by the body's immune system
  • Antigens are harmful substances detected by the immune system (correct)
  • Antigens are microorganisms and chemicals
  • Antigens are large Y-shaped proteins called immunoglobulins

Which type of antibody is produced by B cells as part of the adaptive immune response?

  • IgA
  • IgM (correct)
  • IgE
  • IgG

What are antibodies made of?

  • Fungi
  • Proteins (correct)
  • Chemicals
  • Microorganisms

Which type of antibody is involved in allergic reactions?

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

Which antibody is the main antibody in blood and plays a crucial role in the biological defense system?

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

Which antibody is the only isotype that can pass through the placenta and provide protection to a newborn?

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

Which antibody is mainly distributed in the blood and is the first antibody produced upon pathogen invasion by B cells?

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

Which antibody forms dimers in secretions such as bowel fluid, nasal discharge, and saliva to prevent bacterial invasion from mucous membranes?

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

Which antibody is present in breast milk and protects the gastrointestinal tract of newborns from bacterial and viral infection?

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

Which antibody is reported to play a role in the prevention of respiratory tract infections?

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

Which antibody is believed to be involved in allergies such as pollinosis?

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

Which antibody was originally related to immunity reactions to parasites?

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

Which of the following is NOT a use of monoclonal antibodies?

<p>Delivery of immune cells (B)</p> Signup and view all the answers

What can monoclonal antibodies be used to deliver?

<p>All of the above (D)</p> Signup and view all the answers

What is one of the uses of monoclonal antibodies?

<p>Inducing an immune reaction (C)</p> Signup and view all the answers

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