The most significant cells in graft rejection are
A)helper T-cells.
B)suppressor T-cells.
C)cytotoxic T-cells.
D)B-cells.
E)natural killer (NK) cells.

Question

Quizplus · Accepted Answer

Cytotoxic T-cells play the most significant role in graft rejection, as they directly target and kill the transplanted cells that are recognized as foreign by the immune system. Helper T-cells are also involved in the rejection process by activating other immune cells, but they are not the most significant cells. Suppressor T-cells are involved in regulating the immune response and preventing autoimmune reactions, but they do not play a major role in graft rejection. B-cells produce antibodies, which can contribute to graft rejection, but they are not the most important cells. NK cells are involved in innate immunity and are not typically involved in graft rejection.

The Most Significant Cells in Graft Rejection Are