Antibodies and Antigens Overview

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Questions and Answers

What is the primary function of antibodies in the body?

  • To protect the body from unwanted substances (correct)
  • To clone B cells
  • To cause the immune system to attack itself
  • To produce antigens

Which term is synonymous with 'antibody'?

  • Immunoglobulin (correct)
  • Antigen
  • Toxin
  • Venom

Where are antibodies primarily produced in the body?

  • Muscles
  • Kidneys
  • B cells (correct)
  • Liver

What distinguishes antigens from naturally occurring molecules in the body?

<p>Antigens have different surface molecules than those found naturally in the body (D)</p> Signup and view all the answers

What happens when an antigen comes into contact with B cells?

<p>The B cell divides and clones, leading to production of antibodies (B)</p> Signup and view all the answers

What is the primary function of IgA antibodies?

<p>Protecting against ingested and inhaled pathogens (A)</p> Signup and view all the answers

Which antibody type is responsible for causing allergic reactions?

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

Which antibody class makes up approximately 70% to 75% of all immunoglobulins in the body?

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

Which antibody type is found on the surface of B cells and is thought to support their maturation and activation?

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

Which antibody acts as the first line of defense against infections and plays a large role in immune regulation?

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

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