Question

multiple choice question proteins c1 - c9, factors b and d, and properdin are _________.
o interleukins
o complement proteins
o inflammatory mediators
o pyrogens

Explanation:

Proteins C1 - C9, factors B and D, and properdin are components of the complement system in the immune - response. The complement system is made up of a series of proteins that work together to enhance the ability of antibodies and phagocytic cells to clear pathogens from an organism. Interleukins are cytokines involved in cell - signaling. Inflammatory mediators are substances that cause inflammation. Pyrogens are substances that cause fever.

Answer:

B. complement proteins