Which type of bacteria is characterized by their shape being rod-like?

Bacteria can be classified based on their shape, and rod-shaped bacteria fall under the classification known as bacilli. Bacilli are typically cylindrical in structure, which distinguishes them from other bacterial forms.

Cocci refer to spherical-shaped bacteria, while spirilla are spiral-shaped, and vibrios have a comma-like shape. Understanding these classifications is essential in microbiology and laboratory settings, as the morphology of bacteria can influence their behavior, the diseases they may cause, and the methods used for their identification and treatment.