Certified Ophthalmic Medical Technologist (COMT) Practice Exam

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What term describes bacteria that form chains?

  1. Staphylococcus

  2. Streptobacillus

  3. Diplococcus

  4. Micrococcus

The correct answer is: Streptobacillus

The term that describes bacteria forming chains is "Streptobacillus." This term specifically refers to rod-shaped bacteria that grow in chains, while the prefix "strepto-" indicates a chain-like arrangement. In contrast, staphylococcus refers to bacteria that cluster in grape-like formations, and diplococcus describes bacteria that occur in pairs. Micrococcus refers to spherical bacteria that typically exist in tetrads or irregular clusters, not chains. Understanding these classifications helps in microbiology, as the arrangement and shape of the bacteria can influence their identification and the diseases they may cause.