alleryStart learning →Which statement pairs a basic prokaryotic shape with the right description?
ACocci are the rod-shaped forms
BBacilli are the spiral-shaped forms
CSpirilli are the spiral-shaped forms
DCocci are the spiral-shaped forms
Answer & Solution
Correct answer: C. Spirilli are the spiral-shaped forms
1. Many prokaryotes fall into three shape categories.
2. Cocci are spherical, bacilli are rod-shaped and spirilli are spiral-shaped.
3. Only the option naming spirilli as spiral-shaped matches that scheme.
4. Shape does not follow phylum, so bacteria within one phylum may be cocci, rods or spirals.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 22 "Prokaryotes: Bacteria and Archaea", section 22.2 Structure of Prokaryotes_
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