Clostridium Difficil

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Prokaryotes and Eukaryotes cell
Cell theory states that all organisms are made of one or more cells. There are two basis types of cell: prokaryotes, which do not contain a nucleus, and eukaryotes, which have a true nucleus. The difference between the structure and functioning of prokaryotes and eukaryotes is so great that it is considered, by some, to be the most important distinction among groups of organisms. However, if we are to believe the endosymbiosis theory and that eukaryotes evolved from prokaryotes there must also be some fundamental similarities.

A significant similarity is the fact that both prokaryotes and eukaryotes use the same genetic material (DNA) and genetic code to store and translate genetic information. But this genetic information is arranged very differently within the two types of cell. In eukaryotes the DNA is packed into chromatins and sequestered within a double membrane bound organelle, known as the nucleus, and is easily seen using a microscope. On the other hand, prokaryotes lack this distinct nucleus and nucleur membrane but instead have a nucleoid, which is an irregularly shaped region within the cell where the genetic information is localised in the form of a, usually circular, double strand of DNA. Prokaryotes and some eukaryotes are also known to have additional small satellite structures of DNA called plasmids.

Both prokaryotes and eukaryotes also contain ribosomes which are the organelles responsible for accurately translating this linear genetic code (via messenger RNA) into a linear sequence of amino acids to produce a protein. This is because all cells require the continued synthesis of new proteins for growth and repair. These ribosomes are different in size though: whilst prokaryotes have ribosomes of size 70S, those found in eukaryotes are larger at 80S.

One of the most noticeable differences between the two…...

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