GRAM STAINING EXPERIMENT CONDUCTED ON 9/29/2013 Introduction: The Gram stain is a useful stain for identifying and classifying bacteria. The Gram stain is a differential stain that allows you to classify bacteria as either gram positive or gram negative. This gram stain technique was discovered by Hans Christina Gram in 1884. The gram stain procedure separates all bacteria into one of two groups - into gram-negative bacteria which do not stain purple and into gram-positive
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Direct Method and Grammar Translation Method are the two oldest methods for teaching foreign languages. Grammar Translation Method first appeared in the 18th century and was originally used for teaching old languages like Greek‚ Latin then failed in teaching communication skills. After that‚ Direct Method was built with the attempts to overcome the weakness of the Grammar Translation Method. As a result of that‚ there are many differences in the principles of these two methods which will be summarized
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at least in the better learners. Interestingly‚ Howatt (1984: 131) also states: “Grammar and Translation are actually not the distinctive features of GT‚ since they were already well-accepted as basic principles of language teaching. What was new was the use of invented‚ graded sentences rather than authentic literary texts in order to make language learning easier.” Key features According to Prator and Celce-Murcia in Teaching English as a Second Foreign Language (1979:3)‚ the
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The Gram staining method is named after the Danish bacteriologist who originally developed it in 1882‚ Hans Christian Gram. The Gram staining process is one of the most important staining techniques in microbiology. It is almost always the first test performed for the identification of bacteria. The primary stain of the Gram’s method is either crystal violet or methylene blue‚ each almost equally effective. The microorganisms that retain the crystal violet and iodine mixture appear purplish brown
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results (0.37 seconds) Scholarly articles for rural and urban settlements differences … intolerance in Asian Indians: urban-rural difference … - Ramachandran - Cited by 289 Ecosystem structure and function along urban-rural … - McDonnell - Cited by 726 … wage differentials between urban residents and rural … - Meng - Cited by 329 Search Results Difference between Urban and Rural www.differencebetween.info/difference-between-urban-and-rural Dec 16‚ 2013 - Human settlement areas are classified
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What is the difference between a Democracy and a Republic? Almost ALL of the social problems in this country are derived from the fact that Americans don’t even know what kind of government they have! If you are like most people‚ you think that the United States is a democracy. If you do‚ then you are wrong! Recite the pledge of allegiance. Notice that it says "...and to the republic for which it stands." Now open your copy of the constitution to Article IV‚ Section 4. (You do have a copy
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Gram staining From Wikipedia‚ the free encyclopedia A Gram stain of mixed Staphylococcus aureus (Staphylococcus aureus ATCC 25923‚ Gram-positive cocci‚ in purple) andEscherichia coli (Escherichia coli ATCC 11775‚ Gram-negative bacilli‚ in red)‚ the most common Gram stain reference bacteria Gram staining (or Gram’s method) is a method of differentiating bacterial species into two large groups (Gram-positive and Gram-negative). The name comes from its inventor‚ Hans Christian Gram. Gram staining
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proficiency and should be able to: A. describe staining; B. enumerate the common stains; C. differentiate between an acidic dye and a basic dye; D. compare simple‚ differential and special stains; and E. list the steps in preparing a Gram stain and describe the appearance of a gram-positive and gram- negative cells after each step.\ II. SUBJECT MATTER: Biological Techniques Topic: Staining A. Materials: * cartolina- used during
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Differential Staining Purpose: The purpose of this experiment was to become familiar with subtypes of culture media and the uses for each‚ learn and employ the streak and pour dish techniques‚ and generate a pure culture of a specific organism. Set Up: For this experiment I needed: 1 Distilled water‚ 1 Paper towels‚ 1 10%-bleach or 70% alcohol solution‚ 1 Zip bag‚ 1 Pan to heat agar‚ 1 Isopropyl alcohol (rubbing alcohol)‚ 1 Cultures: S. epidermidis and L. acidophilus‚ 1 Gloves‚ Disposable
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What is the Difference between Intranet and Extranet? Intranets and extranets are network systems that are used to maximize business productivity. In this case the intranet would be the macro-system and the extranet would be the micro-system. When I think about intranet I think of a business’s personal World Wide Web; although it is not the internet it still has more resources and capabilities than the extranet. One way to look at it is to think on a scale of private and non-private. The intranet
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