Flagella Flagellum 。Outside cell wall Filament 。Made of chains of flagellin 。Attached to a protein -Hook hook Cell wall Basal body Peptidoglycan 。Anchored to the wall Outer membrane and membrane by the basal body Plasma membrane Cytoplasm Figure 4.8 • Outside cell wall • Made of chains of flagellin • Attached to a protein hook • Anchored to the wall and membrane by the basal body Flagella Figure 4.8