Choose the INCORRECT statement from the options below.Opsonization of pathogens is one of the consequences of complement activation.The classical pathway is initiated by the activation of C5 to form C5a and C5b.MB-lectin proteins bind to mannose-containing carbohydrates on pathogen surface.C3a and C5a are peptide mediators of inflammation.

The Alternative and Classical complement pathways differ in that ONLY the Classical pathway ____.1 pointuses the breakdown products of C3 and C5 as signals to activate other elements of the immune systemattaches proteins to the surface of pathogen that promote phagocytosisconstructs a pore with variable number of C9 moleculesresults in the breakdown of C2 and C4begins with the stabilization of the natural breakdown product of C3

Which of the following are potential outcomes following complement activation?SELECT ALL THAT APPLYGeneration of antimicrobial peptidesApoptosis of virus-infected cellsInduction of a memory response by B and T cellsOpsonization of pathogens for phagocytosisCytolysis of pathogens through formation of the membrane attack complex (MAC)Induction of an inflammatory response

Select all that applyWhat can activate complement?Multiple select question.Pathogen surface moleculesMBL proteinPhagocytosis

The complement system consists of over 30 different proteins that work together in a cascade fashion to protect us against infectious agents. One way this system is activated is via the __________, when complement proteins are activated by directly interacting with a pathogen.ANSWERclassical pathwaycomplement pathwaylectin pathwayalternative pathway

What functions can complement proteins perform?Group of answer choicesprovide immunity in response to immunizationstore "memories" of specific antigens for months or yearsbind Fc receptorscoat invading microbesattract phagocytes to the site of infectioninsert themselves into the foreign cell's plasma membraneamplify the inflammatory response