If we observe with the microscope, most bacteria have the same size and shape. However, the evidence shows that there is a difference the molecular biology of RNA in Ribosomes. Experts on microbiology divide bacteria into two, namely the Archaebacteria and Eubacteria. The skeunsing gene, Woese and his friends split the Group of Archaebacteria and Eubacteria bacteria.
Archaebacteria is a group of bacteria that produce methane gas from carbon sources are simple, unicellular, microscopic, the cell wall is not peptidoglikon, and in Eubacteria different from biochemistry. In addition, the nature of the other Archaebacteria are anaerobic in nature, can live in trash, dirty places, human or animal digestive tract, halofil extreme, salt environment, as well as thermoplastic operating temperature hot and sour environment. Archeobacteria is regarded as the ancestors of the bacteria present.
Archeobacteria includes living beings autotroph and heterotrophic. Archeobacteria is divided into three groups as follows.
a. Bacterial metanogen.
b. Halobakterium. The genus Halobacterium and Halococcus halofil bacteria that includes extreme are aerobic and heterotrophic. Bacteria of this genus are found in ponds of sea salt. In the event of a doubling of the cells of the halobakterium containing carotenoids, water will be intensive red. In addition, Halobakterium and Halococcus optimum can grow on a solution of NaCl, 3.5 to 5 molar, as well as being able to utilize light energy for metabolism of the body.
c. Thermo-asidofil Bacteria. In this group, all of the Archaebacteri that is nonmetanogen.
In it, there is also representative of autotroph and heterotrophic, asidofil extreme, neurofil, as well as aerobic and anaerobic.
Are Eubacteria bacteria being prokaryotes. Core and organelnya do not have a membrane, are unicellular, microscopic in nature, as well as have a cell wall composed of peptidoglycan. The cell can be a round or straight rod, fragmentary or form colonies in the form of chains, as well as having acted as a parser. These bacteria live in parasites and pathogenic.
However, there is also which are photosynthetic and chemoautotroph. Eubacteria became a very important element in the process of recycling nitrogen and other elements. In addition, some can Eubacteria
Utilized in industrial processes. Eubacteria is divided into six smaller phyla, i.e. bacteria, purple bacteria, Gram-positive bacteria, Spirochaet, Prochlorophyta, and Cyanobacteria.