Multiple choice

Which of the following statements related to a bacterial flagellum is incorrect?

  1. Bacterial flagellum rotates clockwise or counter clockwise from the basal body.

  2. The rotation of basal body causes the movement of flagellum in a bacterium.

  3. The basal body of flagellum in gram positive bacterium has two pairs of rings.

  4. A typical bacterial flagellum consists of three parts: filament, basal body and hook.

  5. Prokaryotic flagellum do not undulate in a wave like motion.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

As gram positive bacterium lacks the outer lipopolysaccharide layer, the basal body of the flagellum in it has only the inner pair of rings and the outer pair of rings are absent in gram positive bacteria. Hence, this statement is not correct.

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