Q170 / 180 · NEET 2013 (All India) · Zoology

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

Correct answer
A
T-lymphocytes
B
B-lymphocytes
C
thrombocytes
D
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.

Hence, the correct answer is option: 'A'.

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