Which of the following statements among A-D Is not accurate regarding complement? A. the effect of complement typically depends on activation of complement factor C3 and C5 B. complement consists of both protein factors and cellular forms C. activated complement factors can combine to form pores in the plasma membrane of infecting cells and kill them D. complement is part of your innate immune system, but also works with the adaptive immune system E. A-D are all accurate statements regarding complement.
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The effect of complement typically depends on activation of complement factor C3 and C5: This statement is accurate. The activation of C3 and C5 is crucial for the complement system's function, leading to the formation of C3 convertase and C5 convertase, which are Show more…
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Which of the following statements concerning complement activation is FALSE? Complement activation involves a large set of serum proteins which cleave and activate other complement proteins. Complement activation is stimulated by TCRs in T-lymphocytes. The classical pathway is activated by antibody-antigen interaction. The alternate pathway is activated by C3b opsonized on pathogens. The lectin pathway is activated by microbial polysaccharides.
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Which of the following is not true regarding the complement system? Answer: This system involves a group of at least 20 proteins found in the blood plasma. During an infection, one protein in this system activates the next in a cascade of reactions. Some components of this system stimulate eosinophils to release histamine. Activated components of this system adhere to bacterial cell walls and then create holes in these cell walls. Some components of this system stick to the walls of bacterial cells, marking them for phagocytosis.
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Complement a. is a general defense mechanism. b. is involved in the inflammatory response. c. is a series of proteins present in the plasma. d. plays a role in destroying bacteria. e. All of these are correct.
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