Question 18 (3 points)Which statement is NOT true regarding bacteria motility?a) the H antigen such as what is referenced to in the 0157:H7 E. coli designation refers to the flagella typeb) chemotaxis can be defined as the directed motion of a bacterium towards an attractant or away from a repellant and can be characterized as a sequence of smooth-swimming runs punctuated by intermittent tumblesc) although the gram positive and gram negative bacterial flagella have overall similar structures, gram positive use 4 rings and gram negative bacteria use 2 rings to anchor the flagella to their respective cell walls and cell membranesd) some bacteria such as spirochaetes (ex. the syphilis microorganism) move by using axial filaments instead of flagella
Added by Joseph M.
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coli O157:H7 refers to the flagellar (flagellin) antigen; this statement is true. Show more…
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