<prompt> All are motile except:KlebsiellaE. coliSalmonellaProteus  <response>: Ans: A Klebsiella Ref: Ananthanarayan, Paniker CJ. Textbook of microbiology. 8th Edition. London: John Wiley Sons; 2009.Explanation:Commonly encountered motile and non-motile bacteriaMotileNon-motileMost Enierobacteriaceae except Shigella and KlebsiellaEg: Proteus, E. coli, SalmonellaShigellaViorio darting motilityKlebsiellaListeria monocytogenes tumbling motility Clostridium tetani stately motility Spirochaetes Cork-screw motility Types of flagella:Peritrichous flagella present all around - Escherichia coli, Salmonella Monotrichous Single polar flagellum - Vibrio, PseudomonasLophotrichous tuft of flagella at one pole - HelicobacterAmphitrichous one or more flagella at both poles - Campylobacter 