Which statement about the complement system is True?
A)These proteins are involved in innate immunity and not acquired immunity.
B)These proteins are secreted by cytotoxic T cells and other CD8 cells.
C)This group of proteins includes interferons and interleukins.
D)These proteins are one group of antimicrobial proteins acting together in cascade fashion.
E)These proteins act individually to attack and lyse microbes.

Question

Quizplus · Accepted Answer

The statement that "These proteins are one group of antimicrobial proteins acting together in cascade fashion" is true. The complement system is a group of proteins that work together in a cascading fashion to identify and target pathogens for destruction. This system is part of the innate immune response, but can also interact with the adaptive immune response.

Which Statement About the Complement System Is True