Question

Cell mediated immunity is carried out by ____I___ while humoral immunity is mainly carried out by ____II__.

• A. I. B cells
  II. T cells
• B. I. T cells
  II. B cells
• C. I. Antibodies
  II. Antigens
• D. I. Antibodies
  II. Phagocytes

Answer 1

The correct option is B I. T cells

II. B cells

Cell-mediated immunity involves the activation of macrophages and natural killer (NK) cells, production of cytotoxic T cells and secretion of cytokines in response to the antigen. It doesn’t involve the formation of antibodies.

Humoral immunity is named so because it involves the substances that are found in the body fluids; this immunity is mediated by chemicals found in extracellular fluids such as antibodies, globulins and antimicrobial proteins etc. Antibodies are produced by the B cells.