Motile bacteria are equipped with flagella that arerotated
Chapter 7, Problem 7.145(choose chapter or problem)
Motile bacteria are equipped with flagella that arerotated by tiny, biological electrochemical engineswhich, in turn, propel the bacteria through a hostliquid. Consider a nominally spherical Escherichiacolibacterium that is of diameter D?2 ?m. The bac-terium is in a water-based solution at 37?C containinga nutrient which is characterized by a binary diffusioncoefficient of DAB?0.710?9m2/s and a foodenergy value of ??16,000 kJ/kg. There is a nutrientdensity difference between the fluid and the shell ofthe bacterium of ??A?86010?12kg/m3. Assuminga propulsion efficiency of ??0.5, determine the max-imum speed of the E. coli. Report your answer in bodydiameters per second.
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