A system that consists of a group of 20 proteins whose activities enhance the body's other defense mechanisms is called ________.

Question

Quizplus · Accepted Answer

The system described is known as the complement system. It consists of a group of over 20 proteins that enhance the body's immune defenses, including inflammation, phagocytosis, and the destruction of foreign cells. Antigens are molecules that can trigger an immune response. Antibodies are proteins produced by the immune system in response to an antigen. Mast cells are a type of immune cell that plays a role in allergic reactions.

A System That Consists of a Group of 20 Proteins