Question

question 39
1.67 pts
why are functions of t - lymphocytes referred to as \cell - mediated\ immunity?
because t - lymphocytes work only against single - celled infectious agents
because t - lymphocytes work against antigens associated with cells
because t - lymphocytes must activate other classes of cells in order to have any effect
because t - lymphocytes are cells and not just plasma proteins

Explanation:

T - lymphocytes target antigens on or associated with cells, which is the basis of cell - mediated immunity. They directly interact with infected or abnormal cells rather than just relying on plasma proteins like in humoral immunity.

Answer:

Because T - lymphocytes work against antigens associated with cells