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Gram Negative Petri Dishes
1,384 wordsAbstract/Summary: Changing our focus from the properties and functions that take place within the cell to the actual cell itself, we observed three specific bacterial types within this lab: Gram-positive bacteria, Gram-negative bacteria, and cyanobacteria. We closely observed the features of cyanobacteria and were able to differentiate them from other bacteria. We specifically observed gloeocapsa, merismopedia, anabaena, and oscillator. In addition to this we observed the different characteristi...
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Lyme Disease Rheumatoid Arthritis
1,225 wordsI. The Bacteria- Borrelia Burgdorferi Lyme disease is caused by Borrelia burgdorferi, a spiral-shaped bacterium that is frequently carried by deer ticks of the genus Ixodes. Borrelia burgdorferi is named after its discoverer, Willy Burgdorfer, PhD. When the deer tick bites a human being, the bacteria are transmitted to the human bloodstream, where it travels throughout the body. Because the bite of the deer tick is usually painless and does not itch, most people do not recall the bite and so can...
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Stability And Bioavailability Of Different Erythromycin Derivatives
2,047 words... ges of erythromycin estate in comparison to the other derivatives. Table 3. 1 compares erythromycin estate and ethyl succinate. Erythromycin estate Erythromycin ethyl succinate Plasma levels up to 6. 5 mg / l Plasma levels up to 2. 5 mg / l 2 doses per day 3 doses per day 250 mg per dose 400 mg per dose no bitter taste bitter taste pH range 3 & # 8211; 7. 5 pH range 6 & # 8211; 8. 5 no dependence on meals dependence on meals Table 3. 1 Comparison between erythromycin estate and ethyl...
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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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Heavy Metals Metal Ions
2,146 wordsThe inhibitory effects of a mercury compound, silver nitrate, and copper sulfate on Bacillus cereus, Escherichia coli, Micrococcus lotus, and Pseudomonas putin Introduction Certain heavy metals can have harmful or inhibitory effects on microorganisms, a process known as oligo dynamic action; for example, some heavy metal ions accumulate in cellular proteins leading to protein denaturation and ultimately cell death (Biology 108 lab manual 2001). A consequence of this is that heavy metals can affe...
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