문제 1선택형What is one of the most important but largely unknown defenses of the human body?AntibodiesWhite blood cellsThe Complement SystemLymph nodes
문제 2선택형Approximately how many complement proteins are saturating every fluid in your body right now?15 million15 billion15 trillion15 quintillion
문제 3선택형What is the primary role of C3 in the Complement System?To act as a distress beaconTo switch from passive to activeTo neutralize water moleculesTo produce antibodies
문제 4선택형What happens when C3b protein finds a target?It anchors tightly to the surface of the targetIt gets neutralized by water moleculesIt deactivates other proteinsIt produces antibodies
문제 5선택형What does the C3 Convertase platform do?Activates more C3 proteinsProduces antibodiesNeutralizes water moleculesDestroys viruses directly
문제 6선택형How do passive immune cells react to C3a proteins?They become neutralizedThey become active and follow the protein tracksThey produce antibodiesThey deactivate other proteins
문제 7선택형What is the role of phagocytes in the Complement System?To produce antibodiesTo swallow and kill enemies with acidTo neutralize water moleculesTo deactivate complement proteins
문제 8선택형What structure is formed by complement proteins on the surface of bacteria to kill them?Antibody complexMembrane Attack ComplexNeutralizing complexDefensive barrier
문제 9선택형Why are viruses particularly vulnerable to the Complement System?They can’t produce antibodiesThey need to travel from cell to cell and are defenseless outside of cellsThey are neutralized by water moleculesThey deactivate upon contact with C3 proteins
문제 10선택형How do some bacteria evade the Complement System?By producing antibodiesBy becoming invisible through certain moleculesBy neutralizing water moleculesBy deactivating C3 proteins
문제 11선택형What is the main purpose of the C3a protein?To bind tightly to bacteriaTo act as a distress beaconTo neutralize water moleculesTo produce antibodies
문제 12선택형What happens when complement proteins change their shape?They deactivateThey can interact with other proteins and activate themThey produce antibodiesThey neutralize water molecules
문제 13선택형What analogy is used to describe the activation of complement proteins?A ticking clockFalling dominoesA chain reactionMatches igniting a fire
문제 14선택형How do complement proteins assist phagocytes?By producing antibodiesBy neutralizing water moleculesBy acting as a glue to help catch bacteriaBy deactivating other proteins
문제 15선택형What is the final outcome of the Membrane Attack Complex on bacteria?It produces antibodiesIt neutralizes water moleculesIt rips holes in bacterial membranes, causing them to dieIt deactivates bacteria
문제 16선택형Why is the Complement System particularly effective against viruses?Viruses can’t produce antibodiesViruses need to travel between cells and are defenseless outside of themViruses deactivate upon contact with C3 proteinsViruses neutralize water molecules
문제 17선택형What is the role of C3 Convertase in the complement cascade?To deactivate other proteinsTo produce antibodiesTo activate more C3 proteinsTo neutralize water molecules
문제 18선택형How do some viruses avoid the Complement System?By producing antibodiesBy shutting down complement activation through specific proteinsBy neutralizing water moleculesBy deactivating C3 proteins
문제 19선택형Why do we still get sick despite having the Complement System?The Complement System is not always activeThe Complement System is not effective against all pathogensPathogens adapt and find ways to evade the Complement SystemThe Complement System produces antibodies
문제 20선택형What is a phagocyte?A type of virusA cell that swallows and kills pathogens with acidA complement proteinA distress beacon