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Although the archaellum is distinct from the bacterial flagellum, researchers be

ID: 148512 • Letter: A

Question

Although the archaellum is distinct from the bacterial flagellum, researchers believe that it is an example of divergent evolution and related to the type IV pilus of bacteria. What are some similarities and differences between archaella and the bacterial type IV pilus? Select all that apply View Available Hint(s) Archaella and type IV pili are both important in attachment to host tissues Archaella are powered directly by ATP, but bacterial type IV pili are powered by a proton motive force. Archaella are important for swimming motility, while type IV pili are important in twitching motility. Archaella have genetic similarities revealed by genomic studies. Archaella and type IV pili both act by rotating

Explanation / Answer

Lophotrichous: flagella located in tuft on one end

Amphitrichous: flagella located in tuft on both ends

Peritrichous:multiple flagella all over the cell

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