Massachusetts State Board Esthetics Practice Exam

Which term describes spiral or corkscrew-shaped bacteria?

1. Spirilla

2. Bacilli

3. Cocci

4. Cilia

The correct answer is: Spirilla

The term that describes spiral or corkscrew-shaped bacteria is indeed spirilla. This classification falls under the shape of bacteria, which is essential in microbiology for understanding their behaviors, functions, and how they can affect human health. Spirilla are characterized by their distinctive helical or spiral structure, which can enhance their mobility in certain environments. This shape allows them to navigate through viscous environments, which can be particularly advantageous. Understanding the morphology of bacteria, such as spirilla, is crucial for estheticians and skincare professionals, as it can be related to various skin conditions and their treatments. Bacilli refers to rod-shaped bacteria, which are different in structure and significance. Cocci are spherical bacteria, which have their own implications in various infections and diseases. Cilia, on the other hand, are hair-like structures that some cells may have for movement or sensory functions, and they are not a type of bacteria. Thus, spirilla stands out as the correct term for describing corkscrew-shaped bacteria.