The presence of a cell wall made of peptidoglycan in eubacteria and a lack of peptidoglycan in archaebacteria distinguishes them from members of the other four kingdoms.
Cells with nulcei ---- Novanet
If you're asking about the seven kingdom scheme, this is the sitch: there are actually only five kingdoms: -Kingdom Animalia (Animals) -Kingdom Plantae (Plants) -Kingdom Fungi -Kingdom Protista (Protists) -Kingdom Monera (Viruses and Bacteria) then another kingdom was proposed, because the organisms that belong to that kingdom have very unque characteristics: -Kingdom Archaebacteria (Archaebacteria) Additonal two more kingdoms are proposed these days: -Kingdom Archezoa -Kingdom Chromista But if your asking on the LEVELS of classification, that's a different story. Ü
The three-domain system is a biological classification introduced by Carl Woese et al. in 1990[1][2] that divides cellular life forms into archaea, bacteria, and eukaryote domains. In particular, it emphasizes the separation of prokaryotes into two groups, originally called Eubacteria (now Bacteria) and Archaebacteria (now Archaea). Woese argued that, on the basis of differences in 16S rRNA genes, these two groups and the eukaryotes each arose separately from an ancestor with poorly developed genetic machinery, often called a progenote. To reflect these primary lines of descent, he treated each as a domain, divided into several different kingdoms. Woese initially used the term "kingdom" to refer to the three primary phylogenic groupings, and this nomenclature was widely used until the term "domain" was adopted in 1990.[2]
Both plant and animal cells are eukaryotic, meaning they have a true nucleus and membrane-bound organelles. This places them in the Eukarya domain, which is characterized by having cells with these features. Plant and animal cells also share other complex cellular structures and processes that are characteristic of eukaryotes.
Aerobic cellular respiration occurs in the mitochondria.
absence of a cellular nucleus
Monera, which includes Archaebacteria and Eubacteria, are unicellular prokaryotic organisms. This distinguishes them from members of all other kingdoms, which are either multicellular or eukaryotic. Additionally, Monera lack membrane-bound organelles.
Eubacteria and archaebacteria are both prokaryotes and do not have complex organ systems like those found in eukaryotes. They have simpler cellular structures and lack membrane-bound organelles. These organisms rely on specialized structures within their cells to carry out essential functions.
Eukaryotes are believed to have evolved from a symbiotic relationship between an ancient archaebacterium and a eubacterium. This theory is supported by similarities in their genetic sequences, membrane structure, and other cellular processes. As a result, eukaryotes share more genetic and structural similarities with archaebacteria than eubacteria.
All members of Eukarya have membrane-bound organelles, such as mitochondria and nucleus, which eubacteria lack. This cellular organization allows eukaryotic organisms to have compartmentalized functions within their cells.
Archaebacteria and eubacteria are grouped together at the bottom of the phylogenetic tree because they are considered the most ancient and simplest forms of life. They lack membrane-bound organelles and have a simpler cellular structure compared to other types of organisms. This placement indicates that they represent some of the earliest branches of evolution.
Cells with nulcei ---- Novanet
Eubacteria are true bacteria. They:-contain peptidoglycan in cell wall-straight-chain ester-linked lipids in cell membrane-four subunit RNA polymerase core-some are pathogenicThe classification archaebacteria is outdated. Archaea are separate from bacteria because they have unique characteristics. They:-lack peptidoglycan in cell walls-branched-chain ether-linked lipids in cell membrane-can obtain energy through methanogenesis-lipid stereochemistry is opposite of that in other organisms-lack thymine in tRNA-ten subunit RNA polymerase core-none are pathogenicEubacteria and archaebacteria have similar general cell structures, but the composition and layout of those cellular components is remarkably different.
blA
yes it is
it's single cellular
While eubacteria may lack the organized organelles found in eukaryotic cells, many eubacteria have specialized internal membranes. Cyanobacteria, for example, have membranes that contain chlorophyll and other chemicals required to carry out photosynthesis.