Certified Ophthalmic Medical Technologist (COMT) Practice Exam 2025 – Comprehensive All-in-One Guide to Success

Question: 1 / 505

What are cocci arranged in grapelike clusters called?

Micrococci

Streptococcus

Staphylococcus

Cocci arranged in grapelike clusters are specifically referred to as Staphylococcus. This classification comes from the Greek word "staphylo," meaning bunch of grapes, and "coccus," which denotes the shape (spherical). Staphylococcus species are commonly found on the skin and in the respiratory tract.

Micrococci are similar but typically appear in tetrads or irregular arrangements rather than clustered like grapes. Streptococcus consists of cocci arranged in chains or pairs, which gives them a distinct appearance different from Staphylococcus. Vibrio refers to a different category altogether, characterized by a comma or curved rod shape, not spherical. This means that Staphylococcus is the appropriate term for cocci that form grape-like clusters, distinguishing them from these other bacterial arrangements.

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Vibrio

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