Do eubacteria contain ribosomes?
Yes, eubacteria do contain ribosomes. As in eukaryotic cells, the ribosomes are the sites of polypeptide synthesis. Like the ribosomes in other organisms, eubacterial ribosomes are constructed of RNA and proteins. However, the details of their chemical composition are different from those of the other major groups (eukaryotes and archaeobacteria) and are characteristic of eubacteria. The chemistry of the ribosomes in mitochondria and chloroplasts is like that of eubacteria.
Define archaea bacteria and eubacteria?
Archaea bacteria is a sort of misnomer. They are two different domains. Archaea are prokaryotes, but are actually much different than eubacteria. They are not true bacteria. However eubacteria are true bacteria meaning they have a peptidoglycan cell wall. However they are both prokaryotes. The third domain are eukarya which are eukaryotes.
What are eubacteria?
Eubacteria (true bacteria) are a domain of living organisms. They are spherical or rod-shaped single-celled microorganisms that have a rigid cell wall, and may use whiplike tails or flagella for motion. Their cells do not possess a nucleus. The term eubacteria was employed to differentiate the prokaryote "bacteria" from the domain known as Archaea, which are closer in structure to eukaryotes (higher organisms).
Compare and contrast eukaryotes and prokaryotes?
A eukaryote cell contains membrane bound organelles and also has a nucleus whereas prokaryote cells don't have a membrane bound organelles or a nucleus. Prokaryote cells are bacteria cells and either belong to the kingdom Archaebacteria or Eubacteria. Eukaryotes are animals, plants, fungi, and most protists.
Why are monerans placed in a unique kingdom?
The kingdoms Eubacteria and Archaebacteria (aka domains Bacteria and Archaea) contain prokaryotic organisms, or organisms without a true nucleus. The kingdom Monera was used to include all the organisms of both kingdoms but was split once taxonomists realized that archaebacteria are more closely related to eukaryotes than eubacteria.
What came first eubacteria or archaebacteria?
It is not known which came first..scientists are still trying to figure this out. Archaebacteria "the ancient ones" are called this because they live in extreme environments similar to environments when the earth was first created. However, it is still not known which came first because Archaea, Eubacteria, and Eukaryotes are all so distinct from one another.
Why are archaebacteria not classified in the same kingdom as eubacteria?
They are not very closely related genetically, and are actually considered one of the three "domains" of life, along with Eukaryotes (organisms with true nuclei). Archaebacteria may represent the oldest forms of life as they are found in extreme environments (such as high heat and saline waters) where little else can live, which may have been some of the earliest life-supporting environments on Earth. Eubacteria may have arisen to dominance once Earth's environment stabilized. There…
What do bacteria and archaea have in common?
There is one kingdom for eubacteria and they are all prokaryotes. They range in size from .1-15 micrometers. They have no internal components and a cell wall. Archaea is a kingdom too. They are closer to eukaryotes than bacteria are and have a cell wall and membrane. Their ribosomal proteins are similar to that of eukaryotes, and very different than bacteria. There are many different types of these, such as extremeophiles, which can live in…