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Deep Sea High Temperature
600 wordsts, and biochemical pathways. In comparing the organism 60 % of M. jannaschii's coding regions did not correlate with the known sequence database. 40 % of the coding regions match the sequences of bacteria and eukaryotes. Those sequences that are similar to bacteria are genes related to energy production, cell division, and metabolism, whereas the transcription, translation, and replication gene sequences seem to be more similar to eukaryotes. EM/ Methanococcus jannaschii /EM consists of three p...
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Tay Sachs Disease Sickle Cell Disease
663 wordsEach year a number of children are born with biological defects that impair normal function. For THREE of the following conditions, discuss such aspects as the biological cause, the methods of treatment and possible means of detection and / or prevention. One lethal disorder inherited as a recessive allele is Tay-Sachs disease. This is caused by a dysfunctional enzyme that fails to break down brain lipids of a certain class. The symptoms usually become manifest a few months after birth. Some sym...
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Gram Positive And Negative Bacteria
828 wordsGram Positive and Gram Negative Bacteria It is a well-known fact that bacterial cells, like plant cells, are surrounded by a cell wall. However, few people know that their cell walls are quite different. Bacterial cell walls are made up of polysaccharide chains linked to amino acids. At the same time, plant cell walls are made up of cellulose, which contains no amino acids. In the same way, bacterial cell walls themselves differ from one another. Scientists distinguish two types of bacteria cell...
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Plasma Membrane Alzheimer Disease
950 wordsLipid Rafts A lipid raft is a micro domain within the membranes of cells that is cholesterol-rich. It has been believed since 1972 that, in cell membranes, membrane proteins and phospholipids are constantly and widely distributed as following a fluid mosaic model. Then in 1988, a scientist named Kai Simmons, who worked at the European Molecular Biology Laboratory located in Germany, suggested the notion that there exist micro domains, which are enriched with a lot of different kinds of lipids, s...
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Plasma Membrane Molecular Biology
2,683 wordsWhat Are The Major Components Of Biological What Are The Major Components Of Biological Membranes And How Do They Contribute To Membrane Function? . What Are The Major Components of Biological Membranes And How Do They Contribute To Membrane Function? . Summary. The role of the biological membrane has proved to be vital in countless mechanisms necessary to a cells survival. The phospholipid bilayer performs the simpler functions such as compartment ation, protection and osmoregulation. The prote...
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Cell Membranes Red Blood
421 wordsIn the early stages of the twentieth century, little was known about cell membranes. Until the early 1950 s, the biological cell membrane was rarely mentioned in scientific literature. It was recognised that something was probably there, but hardly anything about it was known. Considering the lack of technical equipment available a century ago, scientists such as Charles Overton and Edwin Gorter were not only exploring new territory in looking at the properties of cell membranes, but laying the ...
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Peptide Bonds Test Tube
606 wordsThis lab used many test to determine which functional groups were present in certain substance. The Benedicts test was used to identify reducing sugars (glucose and fructose) based on their ability to reduce the Caprice ions to cuprous oxide at high pH. The Cuprous oxide is reddish orange in color when shown to be at high levels by the test, and greenish when at low levels. In both the onion juice and glucose solution the reducing sugar levels were very high, because the test came back dark oran...
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Coronary Heart Disease Clinical Trials
987 wordsZOCOR has been available in the United States since 1992, and ZOCOR has been prescribed for more than 6 million patients worldwide. Background A team of doctors and scientists designed a large-scale, long-term study to determine whether ZOCOR (simvastatin), a cholesterol-lowering medicine, as an addition to diet, could help heart disease patients with high cholesterol live longer and avoid heart attacks. The study took about 6 years and involved 4, 444 patients with coronary heart disease and hi...
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Common Side Effects Fact Sheet
1,048 wordsSteroids are hormonal Steroids Introduction Steroids are hormonal substances, naturally produced in the body by the adrenal glands above the kidney and by reproductive organs. There are many different types of steroids and they all have different effects on the body. Some types of steroids have been found to help destroy some types of cancer cells, and can make more effective. This fact sheet describes steroids, how they are given and some of the side effects that may occur. Common types of ster...
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