Introduction: There are times when it is necessary to go through something both inside and outside‚ literally‚ to learn. This was exactly the case with virtual lab #11 where the experiment called for an examination of an earthworm’s exterior anatomy and interior anatomy. The earthworm as a whole is considered the dependent variable as we cannot change it. However‚ the labels to be placed can be moved so they are the independent variables. My hypothesis is quite elementary. I believe that after studying
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There are several genera of micro-organisms related to contact lens storage case contamination. Unlike CL contamination which is bacterial in nature‚ storage case contamination is often polymicrobial.(Larkin et al. 1990; Gray et al. 1995) Gray et al found that bacterial contamination is common in 77% of lens cases‚ followed by contamination with fungi (24%) and then protozoan (20%). Most commonly found organisms include Pseudomonas aeruginosa‚ Staphylococcus spp‚ Acanthamoeba spp and Fusarium species
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In general‚ members of the genus Vibrio are Gram-negative‚ motile and most of the members have a single polar flagellum‚ when grown in liquid medium (Kaysner & DePaola‚ 2004). Vibrio cholerae lives naturally in riverine and is the causative agent of cholera outbreaks and epidemics. Vibrio cholerae is comma-shaped. Initial isolates are slightly curved‚ whereas they can appear as straight rods upon laboratory culturing. Vibrio cholerae is a facultative anaerobe and can undergo respiratory and fermentative
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I enjoyed doing the virtual lab. I treat water as an occupation so I understood how and what to add to treat the water. If you have a low (acidic) pH then you should add sodium hydroxide. If you have total coliforms‚ you should chlorinate before and after treatment. Often‚ we test houses for total coliforms and e. coli. If the bacteria is positive‚ then we chlorinate the well. After we make sure all the chlorine is throughout the house‚ we let it sit for 24 hours to disinfect the pipes and
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Anthrax is a serious disease that is caused by the bacterium Bacillus anthracis. Bacillus anthracis has a very detailed yet simple description. Its shape is given away in its name by bacillus‚ which means rod-shaped and is also arranged in chains. It is gram-positive‚ so it has a simple cell wall. Since B. anthracis is non-motile‚ it is best to use a semi-solid media rather than a wet mount (Bacillus anthracis… [date unkown]). Colonies will resemble the comma-shape because of the bacilli chains and
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Luminol is a chemical that exhibits chemiluminescence‚ with a blue glow‚ when mixed with an appropriate oxidizing agent. Luminol is a white-to-pale-yellow crystalline solid that is soluble in most polar organic solvents‚ but insoluble in water (Bortoluzzi‚ Cadore‚ Gallon‚ & Imanishi‚ 2014). Method for the detection of traces of blood in the environment and‚ for this reason‚ can also be used to monitor cleaning and disinfection procedures in units at risk for contamination with blood. Microcrystalline
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In this paper‚ I will be discussing about a zoonotic disease that caused the first of all infectious death of man and animals by a specific organism. This organism is capable of developing into very resistant spores‚ that soon develop to survive for many years and under any conditions. I will also be discussing the three forms of anthrax‚ the factors influencing the infection‚ common source of infection‚ how humans can contract it‚ where it grows‚ it’s incubation period‚ the signs after the incubation
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In taxonomy‚ Legionella pneumophila belongs to the Legionellaceae family. In addition‚ Legionella pneumophila belongs to the Legionellales order‚ the Gammaproteobacteria class‚ the Proteobacteria phylum‚ and finally the bacteria domain.1 Legionella pneumophila is a Gram-negative‚ rod shaped‚ nonsporing‚ aerobic‚ facultative bacillus bacterium that is naturally found in fresh water sources that have high algal and iron contents. Legionella pneumophila is mainly aquatic however; it has an aerobic metabolism
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Gold is widely used in modern day medicine to treat disorders. This is because gold is very resistant to bacteria. Bacteria are microscopic single-celled organisms. Bacteria are prokaryotes‚ meaning the entire organism consists of a single cell with a simple internal structure. The DNA of a prokaryote is neatly packed in the nucleus. The bacterial DNA floats freely in a twisted threadlike mass called the nucleoid. Gold is unaffected by almost everything. The only materials that can affect gold are
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Arpan Biswa Professor Bahel English 1101 October 24‚ 2014 Ebola Outbreak 2014 In March 2014‚ West Africa suffered for a first time from the most deadly epidemic disease called Ebola since it was discovered in 1976. Ebola is a viral disease caused by virus called Ebola which is named after the Ebola River in Zaire. “Ebola virus‚ having five known subtypes‚ is part of the family of filoviruses and causes the infectious disease Ebola hemorrhagic fever (Tekman)”. According
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