Final answer:
Both plasma B cells and memory B cells are produced when helper T cells activate B cells. Plasma B cells produce antibodies to fight against pathogens, while memory B cells retain the information about a specific pathogen. Cytokines secreted by helper T cells help the B cells multiply and mature into antibody-producing plasma cells.
Step-by-step explanation:
When helper T cells activate B cells, both plasma B cells and memory B cells are produced. Plasma B cells produce antibodies to fight against pathogens, while memory B cells retain the information about a specific pathogen. The secretion of cytokines by helper T cells helps the B cells multiply and mature into antibody-producing plasma cells.