A primary immune response is
A)the immune response elicited by the primary antigen of a disease-causing microorganism.
B)the immune response elicited by the primary antibodies of a disease-causing microorganism.
C)the immune response elicited by the first exposure of lymphocytes to a particular antigen.
D)the immune response elicited by the first exposure of memory cells to a particular antigen.

Question

Quizplus · Accepted Answer

A primary immune response is the immune response elicited by the first exposure of lymphocytes to a particular antigen. During this process, naive B cells differentiate into antibody-secreting plasma cells and memory B cells, and naive T cells differentiate into effector T cells and memory T cells. The primary immune response takes time to develop as the lymphocytes need to proliferate and differentiate, which is why it can take several days for a person to start producing antibodies after initial exposure to an antigen.

A Primary Immune Response Is