Lab Practicum‚ Micro 200‚ study guide When you did your hand wash experiment‚ you decided a variable to test‚ say‚ hot vs cold water‚ you called this variable an “experimental variable” since it was the variable you were testing experimentally. In order to get meaningful data‚ you need to keep other things the same‚ for example the washing time had to be the same for both‚ you called the washing time a _Control_______ variable. Through the semester‚ you have used two bacteria that produce
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EFFECT OF USED OIL IN Trichoderma harzianum A Thesis Presented to the Faculty‚ Special Science Class Iloilo National High School La Paz‚ Iloilo City In the Partial Fulfillment in the subject Research III Sheree Joie Montomo Polonan January 2013 Chapter 1 Introduction of the Study Chapter 1 is divided into five parts: (1) Background of the Study‚ (2) Statement of the Problem and Hypothesis‚ (3) Significance of the Study‚ (4) Definition of Terms
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War of 1812 Essay Susan Henderson IB HOTA Mr. Feicht Throughout the 19th century‚ America transformed from a small‚ developing country into a world power. It was able to earn some credibility with other countries after it worked so hard to gain its independence in 1776. The United States also made many enemies after its monumental success. Acquisitions of land due to events such as The Louisiana Purchase‚ the Mexican Cession and the addition of Alaska‚ Florida‚ Oregon
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discovered by Lederberg and Tatum in 1946. In their experiment‚ they grew two strains of bacteria in separate vessels with rich medium and then together in one vessel containing the same medium. Then‚ they spread the three vessel contents onto medium agar plates and incubated them overnight at 37˚C. The only plate that showed cell growth was the plate containing the mixture of the two bacterial strains. The other two plates showed no growth. This experiment proved that in order for recombination to
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fermentation vs. respiration of microorganisms. One such medium‚ Thioglycollate Broth is useful for determining the oxygen relationship of a microorganism. The medium contains thioglycollic acid‚ cystine and agar‚ among other things. (Anaerobic Organisms Wikipedia).The thioglycollic acid and agar prevent oxygen from entering the entire medium. The medium used was a plate of TSA +glucose‚ one incubated anaerobically in a
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The first experiment involved agar cubes‚ each with a different surface area‚ to measure how surface area affects the rate of diffusion. In this experiment‚ the constants included 2% agar containing the pH indicator dye phenolphthalein‚ 1% phenolphthalein solution‚ 0.1M NaOH‚ 0.1M HCl‚ squares of hard‚ thin plastic (from disposable plates); unserrated knives; or scalpels from dissection kits‚ metric rulers‚ petri dishes or test tubes to hold the agar cubes. For the independent variable‚
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Historical synonym: Bacillus difficile. Morphology Gram-positive‚ straight rods‚ motility is variable‚ have a flagella. Spores are oval‚ sub terminal swelling the cell. Cultural characteristics Colonies on blood agar plates are circular‚ flat or low convex‚ opaque‚
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For experiments 1and 2‚ many different tests were conducted in order to investigate the different microbes found on the different types of turkey sampled. To begin‚ our group obtained 5 different forms of turkey that are encountered in everyday life: Inspirations deli turkey from Hannaford supermarkets‚ turkey bacon‚ turkey jerky from Whole Foods‚ Inspirations ground turkey from Hannaford‚ and a raw whole chunk slice of turkey breast form Whole Foods‚ these foods were considered experiment 1. Experiment
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Work Plan for Isolation‚ Purification‚ Identification and Starter Culture Activity of Lactoccocus lactis Submitted by: M.Usman Akram B.S. (Hons.) Dairy Technology mh.usman@hotmail.com Mobile : +923217773736 University of Veterinary and Animal Sciences‚ Ravi Campus Pattoki Lactoccocus lactis Classification: Scientific classification | Kingdom: | Bacteria | Division: | Firmicutes | Class: | Bacilli | Order: | Lactobacillales | Family: | Streptococcaceae | Genus:
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results of my unknown and Salmonella typhimurium found in the Bergey’s manual. Gram staining showed gram negative rods‚ a motility test was also conducted to see if the bacterium moved or not‚ it was found to be none motile. Three different types of agar plates were used‚ they had two known bacterium put on along with the unknown to be able to compare negative and positive results if the known with the results of the unknown‚ refer to Barbaro (2016) for how the test were done. Table 1: Results of
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