The Role of Agarase in Agar-Degrading Bacteria Abstract Agar-Degrading (agarolytic) Bacteria is physiological class of bacteria capable of utilising agar as a sole carbon source. This ability is made available by the use of agarases - enzymes which break down agarose into oligosaccharides. This physiological class branches through genii‚ regardless of Gram Stain status or morphology. Through a review of scientific literature we can find identification methods‚ optimum conditions and the
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Microbiology 197 Prepared Bacteria Gram Stains (F12) Materials required: * Microscope; clean and properly set up * Immersion oil * Lens paper * Lens cleaning fluid * Microscope drawing forms * Specimens: 1. Bacillus subtilis 2. Staphylococcus aureus. 3. Escherichia coli Procedure: 1. Observe each of slides listed in “Specimens” above. 2. Make your observations using oil immersion (1000X). 3. Using a drawing form draw the organisms
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Botulism Botulism is a bacterial disease most often linked to un-sterile canned foods. It can be rather serious‚ as it has the potential to paralyze the respiratory system and thus cause death. The bacterium is named Clostridium Botulinum‚ it is a gram-positive and anaerobic pathogen. The morphology consists of rod shaped spores. The toxin is widely used in cosmetic injections‚ also known as Botox‚ to decrease wrinkles in the skin. Though Botulism is mainly linked to canned foods
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were measured and recorded. A hypothesis that was formulated before experimenting was‚ “If the type of disinfectant is Mouthwash‚ then it will allow for the least amount of bacteria growth because the chemicals present in Mouthwash combined with the acidic environment it bring will make it very hard to allow for any bacteria growth”. The independent variable in this experiment was undeniably
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The unknown bacteria A and bacteria B have to be identified by its genus and species. First both bacteria had to be inoculated into a TSA agar media using the streak plate method. Four quadrants were drawn‚ so that the bacteria could be isolated as much as possible. Each bacteria was inoculated into two different plates‚ so that one could be incubated at 37 degrees Celsius and the other at 25 degrees Celsius. Bacteria B‚ which was incubated at room temperature showed red colonies throughout its media
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Effectiveness on Gram Positive and Gram Negative Bacteria. INTRODUCTION: Bacteria are microbial organisms which are present in various environments. Many bacteria are good and help humans synthesize materials and assist in biological processes‚ such as digestion. However‚ some bacteria can cause harmful diseases. When harmful bacteria infects the body‚ people take antibiotics in order to suppress bacteria. Different antibiotics have different ways they suppress bacteria‚ and the efficacy of antibiotics depends
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from a Mixed Culture Mylah Ferland‚ Rivier University MICRO 206‚ March 16th‚ 2016 Introduction: An unknown bacterium experiment‚ this experiment was done to discover what bacterium was in a mixed culture sample. This experiment worked with enteric bacteria which are members of the Enterobacteriaceae and live in the intestinal tract (Willey et al.‚ 2014). Also found in Willey et al (2014) is some characteristics of enterics such as they all degrade sugars by means of the Embden-Meyerhof pathway‚ they
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How do bacteria affect human lives? Bacteria interact and are a constant in our day to day lives‚ perhaps more than suspected. Bacteria are often thought of as bad‚ however this is untrue‚ there is also many types of ‘good’ bacteria. ‘Good’ bacteria can benefit us by simply helping our digestive system work and helping us in the process of fermentation. Bacteria are extremely helpful in the production of many things such as fuel and medicine. But bacteria directly affect our production of
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Virus vs. Bacteria Similarities – Virus vs. Harmful Bacteria Virus and Bacteria are similar. But yet they are different. Viruses and bacteria can make copies of themselves once they are inside a living organism (“J. L.”). They are both harmful bacteria and viruses. These bacteria and viruses can be helpful to the body. All diseases that people get are from virus and bacteria( Microbe Magic). Bacteria and virus are both microscopic organisms that have the same brain structure that why they are called
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Explaining Bacteria Alexandra Solorzano 1E “ Hey Alex. Could you help your cousin with his homework?” “Okay‚ but I don’t understand what could be hard about fifth grade homework. Anyways‚ what are you learning about George?” “Well today my teacher started to talk about these things called Blackmeria? Or what is backferium?” “Umm I think you mean bacteria?” “Yeah! That’s it!” “Then I guess it’s your lucky day because right now in STT I’m in Cell Biology and we started to look into Bacteria too. Tell
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