Question
Biology Question on human health and disease
Cell-mediated immunity in the human body is carried out by
A
Erythrocytes
B
T-lymphocytes
C
B-lymhocytes
D
Thrombocytes
Answer
T-lymphocytes
Explanation
Solution
T-lymphocyte receptors can recognize only antigen that bound to cell membrane proteins. These lymphocytes mediate CMl (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.