Final answer:
Effector T cells are signaled to die off after an immune response but plasma cells persist in producing antibodies. T cells assist B cells in maturing into antibody-producing plasma cells through cytokine signaling, particularly in response to T cell-dependent antigens.
Step-by-step explanation:
The question pertains to the function of effector T cells and plasma cells in the immune system. Effector T cells and plasma cells are types of effector cells. After an immune response, effector T cells, specifically cytotoxic T cells (CTLs), are often signaled to die off. However, plasma cells, which are differentiated B cells, continue to produce antibodies. Th1 cells are a subset of T cells that secrete cytokines to enhance the activity of macrophages and other cells, while Th2 cells secrete cytokines that aid B cells in differentiating into antibody-secreting plasma cells. T cells, through their secreted cytokines, help B cells to multiply and mature into antibody-producing plasma cells, especially in response to T cell-dependent antigens. This dynamic interaction is crucial for the body's defense against pathogens.