Cytotoxic T-cells attack
A) viruses.
B) bacteria.
C) cells that display foreign proteins on their surface.
D) cells that display normal proteins on their surface.
E) viruses and bacteria.

Question

Quizplus · Accepted Answer

Cytotoxic T-cells, also known as CD8+ T-cells, recognize and attack cells that display foreign proteins (known as antigens) on their surface. This includes cells infected with viruses or cancerous cells that have abnormal antigens. They do not attack bacteria directly. They also do not attack cells that display normal proteins on their surface (otherwise the immune system would attack healthy cells in the body).

Cytotoxic T-Cells Attack