Flagella
- Differs from eukarytoic: rather than a flexible whip, it spins like corkscrew: composed of basal body, hook, filament
- monotrichous-single
- lophotrichous- possessing many flagella arranged in tufts or clusters at one end
- amphitrichous- flagella at both ends, singly or in clusters (polar flagella)
- peritrichous- flagella distributed around the entire cell surface