Which of the following structures are involve | vedclass

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(B) In prokaryotic cells,the flagella are the primary structures responsible for motility.$I -$ Pili are elongated tubular structures made of a specia

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(B) In prokaryotic cells,the flagella are the primary structures responsible for motility.$I -$ Pili are elongated tubular structures made of a special protein,primarily involved in conjugation (transfer of $DNA$).$II -$ Flagella are thin,filamentous extensions from the cell wall that act as propellers to provide motility to the bacteria.$III -$ Fimbriae are small bristle-like fibers sprouting out of the cell,which help in attaching bacteria to rocks in streams and also to the host tissues.Therefore,only the flagella are involved in motility.

Which of the following structures are involved in motility?
$I -$ Pili,$II -$ Flagella,$III -$ Fimbriae

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Which of the following structures are involved in motility?$I -$ Pili,$II -$ Flagella,$III -$ Fimbriae