The Difference Between Archaebacteria and Eubacteria

Archaebacteria
General characteristics:

• Archaebacteria is a group of bacteria that produce methane gas from simple carbon compounds.
• Unicellular (composed of one cell)
• Microscopic in size.
• Archaebacteria cell wall is not composed of peptidoglycan.
• Biochemically different from eubacteria.
• An anaerobic bacteria (does not require oxygen to live).
• Can be found in dirty places, humans, and animals digestive tracts.
• It is an extreme halophil organism (can live in the environment with very high salt content).
• It is a thermoplastic bacteria.

  

  Archaebacteria can found in the extreme environments

• It is a primitive bacteria.
• Archaebacteria species exist that can make their own food (autotroph) and some are not (heterotroph).

Archaebacteria are divided into three groups.
1. Methanogenic bacteria
2. Halobacterium

• Halobacterium is an extreme halophile bacteria.
• Aerobic (requiring oxygen for life).
• Heterotrophs.
• Can be found in saltwater ponds.
• Its cells contain carotenoids so that if cell division occurs, the water will change the color of red to red.
• Grow optimum on a 3.5 - 5 molar NaCl solution.
• Able to utilize solar energy for the body's metabolism.

3. Thermo-acidophilic bacteria

•  Consists of species that are heterotrophs and autotrophs.
• It is an extreme acidophilic bacteria (bacteria that can live in the environment with extreme pH).
• There are species that are aerobic or anaerobic.

Eubacteria
General characteristics:

• Eubacteria are prokaryotic organisms (organisms that have no cell nucleus membrane).
• Unicellular
• Very small (microscopic).
• Has a cell wall composed of peptidoglycan.
• Cell eubacteria have a round shape, stem or spiral.
• The cells will join each other to form colonies in a certain amount.
• Eubacteria are decomposer organisms (breaking organic matter of dead living things and converting them into simple inorganic molecules).
• Some species live as parasites and pathogenic. While other species can make their own food (photosynthetic or chemoautotroph)
• Eubacteria are important organisms in the process of recycling nitrogen and other important elements.
• Some species of eubacteria are often used in industrial processes.
• Some species of eubacteria can move because they have a movement tools, while others can not move.

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