Structure of Eubacteria
The structure of the eubacterial cell can be described as follows:
The outermost layer of the cell is the cell wall which is made up of peptidoglycan. In some bacteria, additionally, the capsule is present which is made up of sugars and proteins. Many eubacteria have a cellular appendage called flagella that allows them to move through rotational motion. These flagella are made up of flagellin proteins and extend out from the cell wall. The base of the flagella is fixed within the cell membrane.
The cell wall is followed by the cell membrane and it is made up of a bilayer of phospholipids, proteins, and sugars. Plasma membrane is a selectively permeable i.e not all particles cross the membrane. Enclosed within the cell membrane is cytoplasm in which cellular contents are present. Eubacteria lack a well-developed nucleus and other membrane-bound organelles. DNA is present as the naked and coiled structure in the cytoplasm, such a structure is called the nucleoid.
Eubacteria also have extrachromosomal circular DNA called plasmids which give them resistance to antibiotics and also provide pathogenicity. In the cytoplasm, enzymes and proteins are present to carry out metabolic activities. Sometimes, invaginations of the cell membrane are seen in the cytoplasm called mesosomes. These contain photosynthetic and respiratory enzymes.
Eubacteria – Structure, Characteristics, Classification, and Types
Eubacteria, also known as true bacteria, are single-celled prokaryotic organisms that inhabit diverse environments and play crucial roles in ecosystems and human health. They belong to the domain Monera. The bacteria belonging to Eubacteria have a rigid cell wall, flagella, and single-cell which lacks a nucleus.
Eubacteria examples are Anabaena and Lactobacillus. In this article, we will discuss more about eubacteria cell types, examples, general characteristics, and more.
Table of Content
- Biological Classification
- Kingdom Monera
- Eubacteria General Characteristics
- Where do Eubacteria Live? – Eubacteria Habitat
- Structure of Eubacteria
- Types of Eubacteria
- Classification of Eubacteria
- Difference between Archaebacteria and Eubacteria