Question

multiple choice question
most bacterial flagella are powered by ______.

atp
gtp
a proton motive force
an electron transport chain

need help? review these concept resources.
read about the concept
rate your confidence to sub

Explanation:

Bacterial flagella movement: Most bacterial flagella are powered by a proton motive force. ATP is used in eukaryotic flagella/cilia and some bacterial processes but not flagellar rotation here. GTP has other cellular roles (e.g., protein synthesis, signal transduction) not flagellar power. The electron transport chain generates the proton motive force, which then drives flagellar rotation via the flagellar motor's proton - driven mechanism.

Answer:

C. a proton motive force