Question

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question 28
spirochetes are able to move due to _____.
a glycocalyx for gliding motility
b a membrane - bound flagellum
c pseudopods
d a periplasmic flagellum
e cilia serving as walking feet

Explanation:

Spirochetes move via a unique structure called the periplasmic flagellum. It is located in the periplasmic space between the cell wall and the outer - membrane. Glycocalyx is mainly for adhesion and protection, not for motility in spirochetes. Membrane - bound flagellum is not the correct term for spirochete motility structure. Pseudopods are used by amoeboid cells for movement, not spirochetes. Cilia are not present in spirochetes for movement.

Answer:

D. a periplasmic flagellum