The cell-mediated immunity inside the human body is carried out by

The cell-mediated immunity inside the human body is carried out by
  1. T-lymphocytes
  2. B-lymphocytes
  3. thrombocytes
  4. erythrocytes

Solution

T-lymphocyte receptors can recognise only antigen that bound to cell membrane proteins. These lymphocytes mediate CMI (cell mediated immunity). B-lymphocytes are the major effector molecules of humoral immunity. Erythrocytes are red blood cells. Thrombocytes or platelets secrete factors that are involved in vascular repair.

Asked in: NEET 2013 (All India)

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