Bacilli are what shape?

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Multiple Choice

Bacilli are what shape?

Explanation:
Shape is a basic way to classify bacteria. Bacilli are rod-shaped bacteria, meaning they look like tiny cylinders under the microscope. This sets them apart from cocci, which are spherical, and from spirilla or spirochetes, which are spiral in form. The idea of being chain-like applies to how cocci can cluster in chains, not to the rod shape itself, so it doesn’t describe bacilli. So the defining feature is the rod-shaped form.

Shape is a basic way to classify bacteria. Bacilli are rod-shaped bacteria, meaning they look like tiny cylinders under the microscope. This sets them apart from cocci, which are spherical, and from spirilla or spirochetes, which are spiral in form. The idea of being chain-like applies to how cocci can cluster in chains, not to the rod shape itself, so it doesn’t describe bacilli. So the defining feature is the rod-shaped form.

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