Quick Read

A bacterium is a very small single-celled organism. Bacteria have many shapes.

Learn More

This educational example does not represent every bacterial species, and real sizes vary widely.

In Depth

The length represents a provisional rod-shaped example and remains a range-based estimate pending source review.

Scale measurement

2 µm · length

Quick facts

  • Category: microscopic life
  • Measurement: representative length
  • Scientific review: pending

Related objects

Sources and review