PSI Barbering Practice Exam 2025 - Free Barbering Practice Questions and Study Guide

Question: 1 / 580

What is a characteristic of cocci bacteria?

They are rod-shaped

They are spherical and may grow in clusters

Cocci bacteria are characterized by their spherical shape, which is a fundamental feature that distinguishes them from other bacterial forms. They can exist as single cells or may grow in arrangements or clusters, such as pairs, chains, or clusters. For example, staphylococci form clusters resembling grapes, while streptococci arrange themselves in chains. This clustering ability is significant for identifying various types of cocci and understanding their behavior in biological contexts, including their role in infections and how they respond to various treatments. The other shapes described do not pertain to cocci; therefore, recognizing their spherical nature and potential for clustering is crucial in the study of microbiology and barbering practices that may involve sanitation and infection control.

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They are distinctly spiral

They are elongated and filamentous

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