Adaptive Immunity and Antigens

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Questions and Answers

What is the term for the specific site within an antigen that an antibody or antigen receptor binds to?

  • Immunogenic site
  • Antigen receptor
  • Epitope (correct)
  • Antigenic determinant

Which type of immunity is primarily mediated by B cells and involves the production of antibodies?

  • Humoral immunity (correct)
  • Innate immunity
  • Cell-mediated immunity
  • Adaptive immunity

What is the term for the process by which antigens are transported to lymphoid organs, where they can activate an immune response?

  • Antigen recognition
  • Antigen trafficking
  • Antigen presentation
  • Antigen transport (correct)

What is the term for the molecules recognized by the immune response?

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

Which type of immune response involves the activation of T cells, such as T helper cells and T cytotoxic cells?

<p>Cell-mediated immunity (C)</p> Signup and view all the answers

What is the primary function of CD4 T cells?

<p>To recognize antigen presented by MHC class II molecules (A)</p> Signup and view all the answers

What is the outcome of successful vaccination against measles?

<p>Virtual elimination of the disease in the United States (A)</p> Signup and view all the answers

What is required for antigen-specific T cell activation?

<p>Three signals within the immune synapse (A)</p> Signup and view all the answers

What is the primary function of MHC class I molecules?

<p>To present antigen to CD8 T cells (D)</p> Signup and view all the answers

What is the outcome of granuloma formation during intracellular infection?

<p>The pathogen cannot be completely eliminated (C)</p> Signup and view all the answers

What is the primary difference between the innate immune system and adaptive immunity?

<p>The innate immune system responds immediately to infection, while adaptive immunity takes time to develop. (B)</p> Signup and view all the answers

What is the process by which immune cells specific for a particular pathogen multiply and differentiate to combat infection?

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

What is the result of the gene segment rearrangements that occur in the adaptive immune system?

<p>The generation of variable antigen-specific receptors (D)</p> Signup and view all the answers

What is the purpose of the adaptive immune system's delayed response to infection?

<p>To allow for the specific recognition of pathogens (D)</p> Signup and view all the answers

What is the result of the eradication of smallpox by vaccination?

<p>The stopping of vaccination against smallpox (C)</p> Signup and view all the answers

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