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Questions and Answers

What is the term used to describe lymphocytes that are seeing antigen for the first time?

Memory lymphocytes

Naive lymphocytes (correct)

Experienced lymphocytes

Adaptive lymphocytes

What is the term for the responses that are larger, more rapid, and better able to eliminate the antigen than primary responses?

Tertiary immune responses

Secondary immune responses (correct)

Primary immune responses

Adaptive immune responses

What type of cells are induced during the primary immune response and are responsible for generating secondary immune responses?

Adaptive cells

Inexperienced cells

Exhausted cells

Memory cells (correct)

What is one mechanism by which vaccines confer long-lasting protection against infections?

Immunologic memory (D) Signup and view all the answers

What is the term for the immune system's ability to not react against the host's own potentially antigenic substances?

Immunologic tolerance (C) Signup and view all the answers

What is the fundamental abnormality in autoimmune diseases?

Failure of self-tolerance (C) Signup and view all the answers

What does clonal selection refer to in the context of immune responses?

Selection and proliferation of specific lymphocyte clones by antigens (B) Signup and view all the answers

What is the term used for a population of lymphocytes with identical antigen receptors and specificities?

Clone (B) Signup and view all the answers

What happens during step 4 of clonal selection?

Formation of antigen-specific antibodies (B) Signup and view all the answers

What are the characteristics of different immune responses according to the text?

Different responses are designed to defend best against different kinds of microbes and at different sites of infections. (D) Signup and view all the answers

What does immunologic tolerance refer to?

The ability of the immune system to coexist with potentially antigenic self molecules, cells, and tissues. (B) Signup and view all the answers

What occurs during step 2 of clonal selection?

Antigen X and antigen Y bind to mature lymphocytes. (B) Signup and view all the answers