Complement proteins opsonize microbes and promote their phagocytosis. Encapsulated bacteria resist Binding of antibody to becterial Uptake of bacteria into Granules fuse with phagosomes uptake by neutrophils and surface also leads to the binding neutrophil phagosomes mediated producing toxic oxygen avoid engulfment of the complement protein,C3b by Fc and C3b receptors metaboltes that kill bactera 1997 Current Biology Ltd./Garland Publishing.Inc. Complement proteins opsonize microbes and promote their phagocytosis