What do B cells produce upon differentiation?

What do B cells produce upon differentiation?

• A. Helper T cells and Cytotoxic T cells
• B. Plasma cells and Memory B cells
• C. Antigen-presenting cells and Cytokines
• D. IgG and IgM

Answer: (B)

B cells, upon differentiation, develop into plasma cells and memory B cells. Plasma cells are the effector form of B cells, primarily responsible for secreting antibodies, which are crucial for the adaptive immune response. These antibodies include various classes such as IgG and IgM. On the other hand, memory B cells are long-lived cells that remain in the body after an infection has cleared, allowing for a faster and more robust response if the same antigen is encountered again in the future.

This ability to generate both plasma cells, which actively produce antibodies, and memory B cells, which are key for long-term immunity, underscores the critical role B cells play in the adaptive immune system. This differentiation process is essential for the body’s ability to recognize and respond to pathogens effectively.