Escherichia coli (E. coli) is rod-shaped.
More specifically, E. coli bacteria exhibit a bacillus, or rod-like, morphology. This characteristic shape is maintained by the cell wall and internal structures. A typical E. coli cell measures approximately 1.5 µm in length and 0.5 µm in width. This rod-shaped structure comprises a cylindrical midsection with rounded caps at each end.
Here's a breakdown of the E. coli shape:
- Overall Shape: Rod-shaped (bacillus)
- Dimensions: Approximately 1.5 µm long and 0.5 µm wide
- Structure: Cylinder with rounded ends (caps)
The rod-like shape contributes to E. coli's ability to efficiently acquire nutrients and move in its environment. While some bacteria form chains or clusters, E. coli typically exists as individual, distinct rods.
