Role of macrophages in antibody production is?: (A) Antigen presentation, (B) B cell production, (C) Class switching, (D) B cell activation
Answer is A. Ans. (a.) Antigen presentation(Ref: Robbins 9th/198)Macrophages that have phagocytosed microbes and protein antigens process the antigens and present peptide fragments to T cells. Upon activation, B lymphocytes proliferate and then differentiate into plasma cells that secrete different classes of antibodies with distinct functions