Cytotoxic T cells are like natural killer (NK) cells because they both ________.

A) secrete interferons
B) secrete perforins
C) participate in the immune response
D) participate in innate immunity
E) secrete tumor necrosis factor (TNF)

Cytotoxic T Cells

A type of immune cell that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

Natural Killer Cells

A type of lymphocyte (white blood cell) and a component of innate immune system, involved in the early defense against viruses and tumors by directly attacking cells that have been infected or transformed.

Perforins

Proteins produced by certain immune cells that create pores in the membrane of target cells, leading to cell death.