Q. The cell-mediated immunity inside the human body is carried out by :
(a) Erythrocytes
(b) T- lymphocytes
(c) B-lymphocytes
(d) Thrombocytes
Solution : Correct option : B Acquired immunity creates an immunological memory after an initial response to a specific type of pathogen and leads to an enhanced response when an encountering with that pathogen. The acquired immune system includes both humoral immunity component, cell-mediated immunity. Humoral immunity is mediated by macromolecules found in extracellular fluids such as antibodies. Antibodies are formed by a specific type of cells called B lymphocytes. Cell-mediated immunity is an immune response that does not involve the antibodies, but rather than involves the activation of antigen-specific T-lymphocytes. So, the correct answer is ‘T- lymphocytes’
