Identify the true statement about the complement system?
A) this system represents the first line of innate defense
B) complement proteins are synthesized in the spleen and the thymus
C) complement proteins are activated in the presence of microbial agents
D) this system can be activated in four ways
E) complement proteins circulate in the lymph

Question

Quizplus · Accepted Answer

Complement proteins are indeed activated in the presence of microbial agents, which is a key aspect of the body's immune response to pathogens. This activation can enhance the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane.

Identify the True Statement About the Complement System