<prompt> Which of the following is not the function of complements?Ceil lysisAntiviral actionPromotes phagocytosisToxin neutralization  <response>: Ans: D Toxin neutralization Ref: Ananthanarayan, Paniker CJ. Textbook of microbiology. 8th Edition. London: John Wiley Sons: 2009. Pg 120Explanation:Functions of ComplementIt mediates immunological membrane damage cytolysis, bacteriolysisIt amplifies the inflammatory response and participates in the pathogenesis of certain hypersensitivity reactions.It exhibits antiviral activityIt promotes phagocytosis and immune adherence.It also interacts with the coagulation, fibrinolytic and kininogenic systems of blood. 