A collection of bacterial cell diagram is provided to help you learn the structures and anatomy of a bacterial cell. You can download and print these cell diagrams in preparation for your test or biology class. The diagrams are available in good and printable quality, all provided in the following images below.
The basic bacterial cell diagram is shown above. You can see the cylinder shape of the bacterial cell and the components. Bacteria are prokaryotes and come in many shapes and sizes, from minute spheres, cylinders, and spiral threads, to flagellated rods, and filamentous chains. Bacterial lacks all membrane-bound cell organelles such as mitochondria, lysosome, Golgi, endoplasmic reticulum, chloroplast, peroxisome, glyoxysome, and true vacuole. Bacteria also lacks true membrane-bound nucleus and nucleolus. The bacterial nucleus is known as the nucleoid. The illustration on the diagram below shows a generalized bacterium with many of the main components included.
The cell envelope that you see on the outer part of a bacterium is composed of the plasma membrane and cell wall. The plasma membrane or bacterial cytoplasmic membrane is composed of a phospholipid bilayer. As a phospholipid bilayer, the lipid portion of the outer membrane is impermeable to charged molecules. The most recognizable extracellular bacterial cell structures are flagella. Flagella are whip-like structures protruding from the bacterial cell wall and are responsible for bacterial movement.
You are also given an unlabeled version of the diagrams for evaluation and review purpose. Click on any of these circulatory system diagrams for a quick print!