THE EFFECT OF INCREASING THE CONCENTRATION OF DETTOL ANTISEPTIC LIQUID ON THE GROWTH OF E.COLI Background: Escherichia coli are rod shaped‚ gram negative bacteria often found in the gut of humans and other warm-blooded mammals (Jacques & Ngo‚ 2004). It is transmitted primarily through faecal contaminated food and water. Most strains of E. coli are not harmful to humans‚ however some strains are pathogenic and can cause symptoms including diarrhoea (Unknown‚ 2012). The active ingredient in Dettol
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Antibiotics Vs Tea Tree Oil To determine the effect of various different antibiotics and Tea Tree oil on the Bacillus subtillis different types of bacteria. I will test six antibiotics and the Tea Tree oil on Bacillus subtilis. I will test tetracycline‚ chloramphenicol‚ ampicillin‚ sulphatriad‚ penicillin G and Streptomycin. I would also like to see if Bacillus subtillis shows resistance to Antibiotics or to Tea Tree oil. The use of penicillin is being reduced because of the resistance
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CHAPTER 4 RESULTS AND DISCUSSION 4.1. Angelika keiskei (Ashitaba )crude non-polar extract The crude non-polar extract from the plant Angelika keiskei (Ashitaba) was tested for the anti-bacterial property by using the Kirby – Bauer Disk Diffusion test. There were four 25uL of Ashitaba non-polar extract with different concentrations used which were 12.5 %‚ 25%‚ 50% and 100%. In line with this‚ respective positive controls of the two specimens and negative control were also used. The results
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albeit with some confusion‚ to the end of the 19th century. “Bacillus lactis aerogenes” was isolated by Escherich (1885) from milk and renamed “Bacillus aerogenes” by Kruse (1896) and “Aerobacter aerogenes” by Beijerinck (1900). Until 1955‚ differentiation of this organism from Friedländer’s bacillus (now called Klebsiella pneumoniae) was not clear‚ and most authors
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bacteriorhodopsin by using time-resolved attenuated total reflectio Fouriertransform infrared spectroscopy. Proc. Natl. Acad. Sci. USA 96‚ 5498– 5503. 8. Jeng‚ M.-F.‚ and Dyson‚ H. J. (1996) Direct measurement of the aspartic acid 26 pK a for reduced Escherichia coli thioredoxin by 13 C NMR. Biochemistry 35‚ 1–6. 9. Qin‚ J.‚ Clore‚ G. M.‚ and Gronenborn‚ A. M. (1997) Ionization equilibria for side-chain carboxyl groups in oxidized and reduced human thioredoxin and in the complex with its target peptide
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TREATING TB. Keep in mind that Isonaizd(INH) is the established treatment for preventive therapy ‚ and the usual regimen is up to 300mg daily for adults. You can keep pts on for 6 months or 12 months with a positive CXR. Always give vitB6 when treating pts with INH. If there is a suspected resistance then use Rifampin (RIF) alone or in combo with the said INH. How do we treat current CLASSES III & IV diseases. The first line medications are used in combinations since these tend to delay
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Ilstrup. D. M. (1990).Statistical methods in microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC358156/pdf/cmr00048-0031.pdf Isolation of bacteria by dilution techniques Sharma. D. V.‚ el tol. (2013). Antibacterial and cytotoxic activity of bacillus methylotrophicus-scs2012 isolated from soil. Retrieved from: http://www.jmbfs.org/wp-content/uploads/2013/02/jmbfs_0247_devsharma.pdf Wallenius World Health Organisation. (2012). antimicrobial resistance. Retrieved from http://www.who.int/mediacentre/factsheets/fs194/en/
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Metabolism – enzyme-catalyzed chemical reactions Bacillus cereus – Yes Bacteriophage T4 – No Reproduction – progeny formed sexually or asexually Bacillus cereus – Yes Bacteriophage T4 – Yes Differentiation – different cell types can occur Bacillus cereus – Yes Bacteriophage T4 – No Communication – signaling within and between cells Bacillus cereus – Yes Bacteriophage T4 – No Locomotion – relative movement of cell or organism Bacillus cereus – Yes Bacteriophage T4 – No Evolution
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Name: Joshua Beh Date: 5/30/12 Per. 3 Biology Semester 2 Final Study Guide 2012 Ch. 13. 1. Define population - Consists of all the individuals of a species that live in a specific geographical area and can interbreed. 2. Define natural selection. - The differential rate of reproduction. 3. Explain how gradualism and punctuated equilibrium relate to evolution. - Both involve the species evolving either over a long period of time or rapidly. 4. What does a paleontologist do? - Scientists
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into the lungs. Most types of viral pneumonia are short lived and are rarely fatal‚ excluding the influenza virus that can lead to death. Like bacterial pneumonia‚ the virus sets on and attacks the lung tissue causing the lung to fill with fluid. Mycoplasma pneumonia is caused by minute particles that are neither bacterial nor viral but act like a combination of both. This type of pneumonia is usually epidemic but not severe‚ for it is rarely fatal even if left untreated. Fungus is believed to cause
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