Which term describes rod-shaped bacteria?

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Study for the Biotechnology EOPA Test. Prepare with flashcards and multiple choice questions, each question includes hints and detailed explanations. Get ready to succeed in your exam!

Multiple Choice

Which term describes rod-shaped bacteria?

Explanation:
Rod-shaped bacteria are described as bacilli. The term bacillus (singular) captures the elongated, rod-like form, with bacilli being the plural. In contrast, cocci are spherical, spirilla or spirochetes describe spiral forms, and diplo indicates an arrangement in pairs rather than a shape. So the best match for a rod shape is bacillus. (Note: Bacillus is also a genus name, but here it’s used to describe morphology—rod-shaped bacteria.)

Rod-shaped bacteria are described as bacilli. The term bacillus (singular) captures the elongated, rod-like form, with bacilli being the plural. In contrast, cocci are spherical, spirilla or spirochetes describe spiral forms, and diplo indicates an arrangement in pairs rather than a shape. So the best match for a rod shape is bacillus. (Note: Bacillus is also a genus name, but here it’s used to describe morphology—rod-shaped bacteria.)

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