Amphitrichous bacteria feature flagella located in which arrangement?

Amphitrichous bacteria are characterized by having flagella at both ends of the cell. This arrangement allows for directional movement, enabling such bacteria to navigate through their aquatic environments effectively. The presence of flagella at both poles can enhance a bacterium's ability to move toward or away from stimuli, promoting successful survival and colonization.

In contrast, randomly distributed flagella are typically found in peritrichous bacteria, while a single flagellum arrangement is indicative of monotrichous bacteria. The phrase "surrounding the cell" would apply to peritrichous bacteria, which have flagella distributed over the entire surface. Understanding these structural characteristics is essential for differentiating various types of bacteria based on their modes of movement.