When a "new" antigen first challenges the immune system, if the primary immune response produces B cells, what are the fates of those B cells? I-Some of the B cells become plasma cells that secrete antibodies.II-Some of the B cells become memory cells and can produce a swifter response if the body encounters that particular antigen again.III-Some of the B cells secrete chemicals called pyrogens that travel to the brain inducing a fever.
A)just II
B)just I
C)II and III
D)I and II

Question

Quizplus · Accepted Answer

Some B cells become plasma cells that secrete antibodies, and some become memory cells for a faster response upon re-exposure to the antigen. Pyrogens are not secreted by B cells.

When a "New" Antigen First Challenges the Immune System, If