Which type of lymphocyte is sometimes called a "killer cell" that brings about destruction of antigen-bearing cells?
A)helper T cell
B)suppressor T cell
C)cytotoxic T cell
D)memory T cell
E)macrophage

Question

Quizplus · Accepted Answer

Cytotoxic (or killer) T cells are responsible for recognizing and destroying cells that are infected with a virus or have become cancerous. They do this by releasing toxic substances that cause the target cell to undergo apoptosis (programmed cell death). Helper and suppressor T cells do not directly destroy target cells, but instead regulate the immune response. Memory T cells are a type of T cell that remain in the body after an infection has been cleared, providing long-term immunity against that specific pathogen. Macrophages are a type of immune cell that engulfs and destroys foreign substances in the body, but they do not target specific cells like cytotoxic T cells do.

Which Type of Lymphocyte Is Sometimes Called a "Killer Cell