The two most important functions of the complement system are to alter microbial cell membranes and

Question

Quizplus · Accepted Answer

The complement system can initiate an inflammatory response by attracting phagocytes to the site of infection, increasing blood vessel permeability, and promoting the release of chemical mediators such as histamine.

Answer: A
 The complement system can also help inactivate macrophages, which are important immune cells that can engulf and destroy invading microorganisms.

Therefore, both choice B and A are equally important functions of the complement system.

The Two Most Important Functions of the Complement System Are