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15 Questions

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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?

Antigens 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?

Cell-mediated immunity Signup and view all the answers

What is the primary function of CD4 T cells?

To recognize antigen presented by MHC class II molecules Signup and view all the answers

What is the outcome of successful vaccination against measles?

Virtual elimination of the disease in the United States Signup and view all the answers

What is required for antigen-specific T cell activation?

Three signals within the immune synapse Signup and view all the answers

What is the primary function of MHC class I molecules?

To present antigen to CD8 T cells Signup and view all the answers

What is the outcome of granuloma formation during intracellular infection?

The pathogen cannot be completely eliminated Signup and view all the answers

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

The innate immune system responds immediately to infection, while adaptive immunity takes time to develop. 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?

Clonal expansion Signup and view all the answers

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

The generation of variable antigen-specific receptors Signup and view all the answers

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

To allow for the specific recognition of pathogens Signup and view all the answers

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

The stopping of vaccination against smallpox Signup and view all the answers