title: Extrusive organelles in protists.
mesh_terms: D000818:Animals; D016782:Apicomplexa / Q000648:ultrastructure*; D002462:Cell Membrane / Q000648:ultrastructure; D016798:Ciliophora / Q000648:ultrastructure*; D056890:Eukaryota / Q000502:physiology / Q000648:ultrastructure*; D008954:Models, Biological; D009940:Organoids / Q000502:physiology / Q000648:ultrastructure; D014617:Vacuoles / Q000648:ultrastructure