What two functions do phagocytes serve in immune responses?
A) Production of antibodies AND engulfment/destruction of foreign cells.
B) Engulfment/destruction of foreign cells AND alerting the other cells of the immune system to an invader.
C) Alerting the other cells of the immune system to an invader AND serving as a physical barrier against microbial invasion.
D) Production of antibodies AND serving as a physical barrier against microbial invasion.
E) Alerting the other cells of the immune system to an invader AND production of antibodies.

Question

Quizplus · Accepted Answer

Phagocytes, such as macrophages and neutrophils, play two important roles in immune responses: engulfing and destroying foreign cells, and alerting other cells of the immune system to an invader by presenting antigens on their cell surfaces. They do not produce antibodies or serve as a physical barrier against microbial invasion. Therefore, option B is the correct answer.

What Two Functions Do Phagocytes Serve in Immune Responses