Question

select all that apply
which three of the following methods of movement found in bacteria are mediated by flagella?

gliding
swarming
swimming
corkscrew movement
twitching

Explanation:

1. Swarming: Some bacteria with flagella can swarm over surfaces, moving in a group - like manner using their flagella.
2. Swimming: Bacteria use flagella to propel themselves through liquid environments, which is the swimming movement.
3. Corkscrew movement (also called "spirochete - like" or due to flagella in some spiral bacteria): Certain bacteria with flagella (e.g., spirochetes have axial filaments, a type of flagella - like structure) move in a corkscrew - like motion.

Gliding and twitching are non - flagellar methods of bacterial movement (gliding can be due to slime secretion or other surface - associated mechanisms; twitching is due to pilus - mediated movement).

Answer:

B. Swarming, C. Swimming, D. Corkscrew movement