Here is a handy of free and printable bacteria diagram for any educational purpose. As we have known, bacterial cells are much smaller than plant or animal cells. They were first seen under a microscope by Anton van Leeuwenhoek in 1676. As microscopes have improved, scientists have come to understand bacterial cell structure better. The first look of the diagram can be seen in the following image.
You have to see the structure of bacteria using a microscope. Especially using electron microscopes we now know that bacteria have a cell wall. This is similar to a plant cell wall but is more flexible. Bacteria do not have a nucleus. They do have two types of DNA – plasmid and chromosomal. The chromosomal DNA carries most of the genetic information. Plasmid DNA forms small loops and carries extra information. Some bacteria have a flagellum – a whip like tail. This helps the bacteria to move itself along. When we talk about these flagellum tails in multiple bacteria, we call them flagella. In these bacteria diagrams, you can see the details of the cells clearly.
There are many things about bacteria cell: A bacterial cell remains surrounded by an outer layer or cell envelope, which consists of two components – a rigid cell wall and beneath it a cytoplasmic membrane or plasma membrane. The cell envelope encloses the protoplasm, made up of the cytoplasm, cytoplasmic inclusions (such as ribosomes, mesosomes, fat globules, inclusion bodies, vacuoles) and the nuclear material. In some bacteria, the cell envelope may be enclosed in a loose slimy layer or capsule. Some bacteria also carry flagella. Fine hair-like fimbriae or pili are also present in some bacteria. Bacterial cell wall is extremely thin (10-25 nm thick) and provides rigidity and a definite shape to the cell. More diagrams are as follows.
We also provide you with the unlabeled version of the diagram for any evaluation process. All these diagrams are free and printable in large size. Click on the image to enlarge it and save it.