Cells that destroy some types of tumor cells and some virus-infected cells without prior exposure are:
A) lymphocytes.
B) plasma cells.
C) megakaryocytes.
D) natural killer cells.

Question

Quizplus · Accepted Answer

Natural killer (NK) cells are a type of lymphocyte that can recognize and destroy tumor cells and virus-infected cells without prior exposure. Plasma cells produce antibodies, but do not directly destroy infected or cancerous cells. Megakaryocytes are responsible for the production of platelets, and are not involved in immune responses.

Cells That Destroy Some Types of Tumor Cells and Some