What term describes bacteria that are curved or corkscrew in shape?

The term that describes bacteria that are curved or corkscrew in shape is "Spirilla." This classification is used in microbiology to categorize bacteria based on their shapes, and spirilla are specifically characterized by their spiral or corkscrew form. This shape allows these bacteria to have a unique mode of motility, typically using flagella, which helps them navigate through their environments effectively.

Bacilli refers to rod-shaped bacteria, while cocci describes spherical bacteria. Vibrio, although also curved, specifically refers to a comma-shaped bacterium. Understanding these distinctions is important for identifying bacterial species and understanding their behaviors and interactions in various environments.