Select characteristics exhibited by all bacteria.

Single-celled Organisms: All bacteria are unicellular, meaning they consist of a single cell.

Prokaryotic: Bacteria are prokaryotic organisms. This means they do not have a nucleus or other membrane-bound organelles.

Cell Wall: All bacteria have a cell wall that protects them. This cell wall is usually made of peptidoglycan.

Reproduction: Bacteria reproduce asexually, most commonly through a process called binary fission.

Metabolism: Bacteria can be autotrophic (able to make their own food) or heterotrophic (relying on other organisms for food).

Presence of Ribosomes: All bacteria have ribosomes, which are the sites of protein synthesis.

DNA: Bacteria have circular DNA, which is located in a region of the cell called the nucleoid.

Size: Bacteria are microscopic and cannot be seen with the naked eye.

Mobility: Some bacteria have flagella, which are whip-like structures that allow them to move.

Sensitivity to Antibiotics: Most bacteria are sensitive to antibiotics, which can kill them or stop their growth. However, some bacteria have developed resistance to certain antibiotics.