Select all that applyWhich of the following are true of complement?Multiple select question.It is the main defense system of invertebrates.It is comprised of approximately 30 proteins.Its component proteins usually circulate freely in the blood plasma in inactive form.It is comprised of a group of proteins that are normally produced in all of the potential routes of entry for microbes.

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

The complement system is actually composed of Blank______.Multiple choice question.antibodies that can be produced without help from T cellsa number of blood plasma proteinsmonocytes and natural killer cellscytokines secreted during parasitic infections

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

Which of the following is NOT an effect of complement activation?Group of answer choicesBacterial cell lysisInterference with viral replicationOpsonizationIncreased phagocytic activityIncreased blood vessel permeability

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