_______ are Important in Destroying Cancer Cells and Cells Infected

Question

_______ are important in destroying cancer cells and cells infected by viruses.
A) Memory B cells
B) Killer B cells
C) NK cells
D) Macrophages

Accepted Answer

NK (Natural Killer) cells are important in destroying cancer cells and cells infected by viruses. They recognize abnormal or infected cells by detecting changes in their membrane protein expression and release cytotoxic granules to induce apoptosis in the affected cells. Memory B cells and macrophages are involved in different aspects of the immune response but do not have direct roles in killing cancer cells or infected cells. Killer B cells are not a known type of immune cell.