Archaea

and harmful materials such as bacteria. Archaea can be found on human tissue or epidermis, but however, their affluence is unknown and rarely studied. The number of microorganisms on the human epidermis is dependent on a variety of things. For example, the location, presence of moisture, age, sex, immune system and living conditions play an important role in the composition of the microbial communities. Only a few studies have mentioned the detection of archaea on human epidermis with archaea’s…

Archaea and Bacteria are both microscopic, uni-celled organisms, otherwise known as microbes. Superficially, they look the same. At one point in time, early discoverers did not know they were different domains due to their substantial, physical appearance…

Both archaea and bacteria share the following similarities, they are both prokaryotes, without any complex cell structure. When looking through a microscope they are both identical in appearance to include shape and size. They both reproduce using binary fission, and move around using flagella. Archaea and bacteria have cell walls on the outside, which provide support, and lets Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles.…

This uses ribosomal sequencing to place organisms in to three groups; Archaea, Bacteria and Eukaryotes. This essay will explore which system is more useful in categorising…

cytochrome oxidase is considered to be a very important event in evolutionary history. However, not much is known on the development and emergence of this enzyme. Molecular data demonstrates how cytochrome oxidase emerged before the divergence of archaea and bacteria, and well before the great oxidation event. This paper proposes a research plan to investigate the origins of cytochrome oxidase. Background Throughout the three domains of life, a variety of metabolisms are present in a vast amount…

eukaryotes; meaning that they lack a nucleus and only have a nucleoid region. They also lack membrane bound organelles. Prokaryotes are then broken into two kingdoms, Bacteria and Archaea. Bacteria are the less advanced of the two and is believed that Archaea advanced from Bacteria and then eukaryotic cells advanced from Archaea. Eukaryotic cells have a nucleus and membrane bound cells. It is believed that the first Eukaryotic cell first appeared when a larger prokaryotic cell engulfed…

hand with studies on meta-transcriptomic, there were as high as 23 genera of methanogenic archaea present in the rumen of buffaloes (unpublished data). The methanogenic archaea are reported in the rumen of sheep and cattle in sufficiently large numbers varying from 107 to 109 cells/ml of rumen liquor depending upon the type of diet given to the animals, especially the fibre content in the ration. These archaea play a vital role in the rumen of scavenging molecular hydrogen generated during rumen…

structures are collectively called the nucleus of the cell. Prokaryotes, particularly bacteria, come mostly in 3 different shapes. Them being rod-shaped, spherical or in a spiral shape. Eukaryotes include all other cells apart from bacteria and archaea. However, the shape of eukaryotes are usually irregular in animal cells and quite regular in plant cells. Examples of prokaryotic organisms include Escherichia coli which is a bacterium of which a certain strain can cause food poisoning, but…

have a large impact on other marine organisms throughout their lifecycle. Marine invertebrates may comprise more than 30% of all animal species and are commonly associated with distinct microbial communities (Otero-Gonzáles et al., 2010). Bacteria, archaea and single-celled eukaryotes may act as larval settlement cues, symbionts or pathogens to a range of marine invertebrate phyla. Bacteria quickly colonize available surfaces and form biofilms (Huang et al., 2007). Marine bacteria transition…

The marine world is highly dependent on the activity of microbes in many different ways. Microbes in the ocean come in the form of autotrophs and heterotrophs and come in any of the three domains of Eukaryota, Archaea, and Bacteria. Members of these domains can range from all niches as producers at the bottom of the food change, critical gut microbes and decomposers. Arguably, somewhere these and more duties are most important is around the hydrothermal vents found at the bottom of the ocean.…