Question

Antibody producing plasma are derived from

• A. Memory T cells
• B. Supressor T cells
• C. Helper T cells
• D. B lymphocytes

Answer 1

Answer: (D)

B lymphocytes

The B-lymphocytes are the types of immune cells that are involved in the humoral immune response. It means these cells are responsible for making antibodies in the bloodstream and destroy the antigen that infects the blood and tissues via blood. T-cells are responsible for cell-mediated immunity. They wipe out those pathogens that invade the tissues directly. B-cells can exist in two forms- Memory B-cells that are specified for a particular infection and Plasma B-cells that actively secrete antibodies. Plasma B-cells are derived from the memory B-cells whenever that specific antigen invades the blood second time.

Hence, the correct answer is 'B-lymphocytes'