<prompt> Plasma cells are derived from?T cellsB cellsMacrophagesNeutrophils  <response>: Plasma cells originate in the bone marrow; B cells differentiate into plasma cells that produce antibody molecules closely modeled after the receptors of the precursor B cell. Once released into the blood and lymph, these antibody molecules bind to the target antigen foreign substance and initiate its neutralization or destruction Reff: Ananthanarayanan panikers textbook of microbiology 9th edition pg:135 