White blood cells that directly destroy virus-infected and cancerous cells are ______ cells.
A)helper T
B)suppressor T
C)natural killer
D)B

Question

Quizplus · Accepted Answer

Natural killer cells are specialized white blood cells that can directly recognize and destroy virus-infected and cancerous cells without the need for prior exposure or activation, unlike other white blood cells such as T cells and B cells. Helper T cells assist other white blood cells in their immune functions, suppressor T cells regulate immune responses by inhibiting other immune cells, and B cells produce antibodies against foreign substances. None of these cells have the direct cytotoxicity exhibited by natural killer cells.

White Blood Cells That Directly Destroy Virus-Infected and Cancerous Cells