Question

Plasma cells are ______.

Options

• inactive T-cells carried in the plasma

• B-cells that are actively secreting antibody

• formed from blood plasma

• the same as memory cells

Answer 1

Plasma cells are B-cells that are actively secreting antibody.

Explanation:

Plasma cells are differentiated B-cells that actively secrete antibodies as part of the humoral immune response. They are not inactive T-cells, are not formed from blood plasma, and are distinct from memory cells, which serve to provide long-lasting immunity after antigen exposure.