Adaptive immunity is sometimes also called acquired immunity.Which of the following statements provides a basis for the alternative name?
A) Lymphocytes of the adaptive immune system are highly specific for a single antigenic determinant.
B) Activated lymphocytes produce daughter cells that are identical in specificity and function.
C) To become activated, lymphocytes require exposure to the antigenic determinant for which they are specific.
D) Activated lymphocytes may persist for years in the body.
E) Lymphocytes reactive to normal body components are removed.

Question

Quizplus · Accepted Answer

The alternative name "acquired immunity" refers to the fact that the immune system acquires the ability to recognize and respond to specific antigens through exposure to them. This exposure is necessary for lymphocytes to become activated and to proliferate into a population of specific, effector cells that can actively target the antigen. Therefore, choice C provides the basis for this alternative name by emphasizing the importance of antigen exposure for the activation of lymphocytes in the adaptive immune response.

Adaptive Immunity Is Sometimes Also Called Acquired Immunity