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    Essay On Archaea

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    The Archaea Introduction All living organisms can be classified into The Three Domains of Life, Archaea, Bacteria or Eukarya. See Figure 1 below. Archaea formerly known as archaebacteria are prokaryotic microorganisms meaning they have no cell nucleus or any other membrane bound organelles in their cells. Archaea are comparable in size to bacteria. The single cellular microorganism, Archaea, can live in a range of environments including those of extreme conditions. This report outlines Archaea as

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    Archaea Research Paper

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    paper categorised the Tree of Life into three domains for the first time– Archaea, Eubacteria and Eukarya. Before this, Archaea were known as Archaebacteria due to their prokaryotic, single-celled appearance similar to bacteria. However, Woese analysed 16S ribosomal RNA from all three groups and discovered there were differences of such significance in the sequences, for example between positions 180 and 197, that Archaea should be classified as their own domain. The three domains are believed to

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    Introduction Archaea and the origin of life. The word Archaea originated from the Greeks, meaning beginning. Throughout this essay we will go through discovers of Archaea and why they are classified as Prokaryotes and what the actual evolutionary relationship of Archaea to Eukaryotes and bacteria. We will look at the differing views throughout the scientific community in regards to the number of domains. Over whether three domains of life or two domains of life fit in the Tree of life. We will look

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    Endosymbiosis

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    chloroplasts, and prokaryotes all divide by binary fission. The genome of mitochondria and chloroplasts most resemble prokaryot... ... middle of paper ... ...he nucleus as well. In conclusion, the nucleus is an endosymbiont of bacteria and archaea. The host cell most likely did not come from the bacteria. The host cell, chronocyte, was not a prokaryotic cell but one that had a cytoskeleton composed of actin and tubulin and a complex membrane system. The chronocyte contributed to the end

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    Types of Microorganisms

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    microorganisms are divided into three phylogenetically distinct domains, which has included the Archaea, the Bacteria and the Eukarya (Madigan, Martinko, Stahl, & Clark, 2012) (refer to Figure 1 in Appendix 1). Archaea is the first domain of microorganisms. Archaeas are unicellular prokaryotes which vary from bacteria and eukaryotes (Pack, 2007). Pack (2007) stated that the cell walls of Archaeas consist of polysaccharides while the plasma membranes are made up of phospholipids. According to

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    Theories on Cell Fusion

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    other prokaryotes, thus explaining the presence of bacterial genes in mitochondria. Many scientists are now contesting this idea based on new data. This new data shows that some of the machinery for transcription and translation of DNA may be from archaea, instead of the theory that most or all genetic information came from an engulfed bacterial cell. “In particular, it is turning out that eukaryotic nuclear genomes carry many genes of bacterial (sometimes á-proteobacterial) origin which have nothing

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    review

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    Effluents from many food processing industries, slaughterhouses, edible oil processing industries, and dairy product industries contain high lipid. These lipid-rich wastes content lipids as a main ingredient and causes problems during the anaerobic treatment of waste. One of the operational problems associated with lipid is clogging. Besides clogging, it also causes the mass transfer limitation forming a layer on the surface of granules by absorbtion. Due to adhesion of fat, biomass wash out is

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    Biology today is used in various forms and ways, biology is all around us and in us. One of the areas in which biology is very helpful, is DNA forensics. DNA in forensic science is used to gather information and evidence for use in the court of law. DNA blood profile evidence can be collected through numerous ways like saliva, semen, blood, urine, feces, hair, teeth, bone, cells and tissue. DNA evidence can be collected from many items, examples are such as a mask, gloves, shoes, clothes, bedding

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    after 6 m h-1, a sharp decline in the performance of the system was observed and at 10 m h-1 the reactor was deteriorated. Granule breakage and wash out were consequences of increased upflow velocity affecting the abundance and diversity of both Archaea and Bacteria. Methanosaetaceae was found to be most sensitive to the increased shear and being the main bridging agent in the aggregate, the loss of this group proved to be detrimental for the reactor performance.

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    Archaea have emerged as the most primitive organisms yet discovered (Wikipedia #8). This is exciting because Archaean functions can give humans invaluable insight into some of the most basic functions that facilitated life on our planet. Furthermore, the study of primitive organism and the conditions they require for survival can clue scientist in on extraterrestrial environments that may possibility support life similar to our own. Like bacteria, Archaea are prokaryotes (Article

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