Which statement best describes the difference between responses of effector B cells (plasma cells) and those of cytotoxic T cells?
A) B cells confer active immunity; cytotoxic T cells confer passive immunity.
B) B cells respond the first time a pathogen is present; cytotoxic T cells respond subsequent times.
C) B cells secrete antibodies against a pathogen; cytotoxic T cells kill pathogen-infected host cells.
D) B cells carry out the cell-mediated response; cytotoxic T cells carry out the humoral response.

Question

Quizplus · Accepted Answer

B cells (plasma cells) produce and secrete antibodies that bind to pathogens, marking them for destruction by other immune cells, which is part of the humoral immune response. Cytotoxic T cells directly kill cells that are infected with a pathogen, which is part of the cell-mediated immune response.

Which Statement Best Describes the Difference Between Responses of Effector