Bio Lab Report Title: Gram-Negative and Gram-Positive contamination in yogurt. Introduction: There is bacteria that is beneficial and harmful in the human. Yogurt was choosed to be the best example that contains this bacteria. What happens to be the difference between these two types of bacteria‚ and how are they harmful? The bacteria is considered “Gram-Negative‚” and the substance is considered contaminated when there is more negative bacteria than positive bacteria. This will prove or disapprove
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Momordica charantia L. Extract as a Prophylactic Medicine for Gram-Negative Bacteria Escherichia coli Proponents: John Rovic P. Ngo Lester T. Almarez Trisha Mae N. Reyes August 2013 In Partial Fullfillment of the Requirements in Research II-B Momordica charantia L. Extract as a Prophylactic Medicine for Gram-Negative Bacteria Escherichia coli A Science Research Project Presented to The Faculty of Science and Technology Mr.June Hayden Sinson Research Adviser
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The Comparative Analysis of Simple Staining and Gram Staining Techniques by observing E. Coli and S. Pyogenes under the Compound Light Microscope INTRODUCTION: A German bacteriologist‚ Dr. Theodore von Escherich‚ was the first man in 1885 who discovered the bacterium named Escherichia coli‚ which are gram negative and appears in rod shaped. Most kind of bacteria E. Coli does not cause diseases and some strains indeed are beneficial in helping the process of food breaking down in the intestines
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different cultures were observed. In order to proceed identification‚ those cultures were isolated as separate organisms‚ using inoculating streak technique and incubated until the next class period. The expected result was supposed to show Gram positive and Gram negative bacterium growing on a separate media. Having checked two Nutrient plates‚ signs of visible growth of two different bacterium were present. Due to the fact‚ that one type of bacteria didn’t appear to be fully
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1.What is the purpose of staining samples?A) To increase the contrast and visibility of the specimen B) To kill the specimen C) To see the specimen without the aid of a microscope D) To make the specimen appear larger in the microscope2.Which of the following are bacterial SHAPES? (Select all that are correct. Be sure to select the appropriate scientific name. You lose points for choosing incorrectly or for not choosing a correct choice.)A) Vibrio B) Strepto C) Spirillum D) Staphylo E) Cocci
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Exercise 8-B Differential Staining Gram Staining and Acid Fast Staining Introduction: Differential Staining‚ one which facilitates differentiation of various elements in a specimen is a general term that can refer to a number of specific processes. Using multiple stains can better differentiate between different microorganisms or cellular components of a single organism. Gram’s Stain is a widely used method of staining bacteria as an aid to their identification. It was originally devised by Hans
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LAB REPORT NUMBER TWO DATE: 3/25/2010 inal attachment Lab Experiment number 11 PURPOSE: To learn the Gram stain technique‚ the reason for the stain‚ and how to identify the results of the organisms stained. MATERIALS: Bunsen burner‚ inoculating loop‚ staining tray‚ glass slides‚ bibulous paper‚ lens paper‚ oil‚ and microscope METHODS: Apply Crystal Violet (Primary stain) for 1 minute. Rinse with D-water Apply Iodine (Mordant) for 1 minute. Rinse with D-water. Apply Alcohol (Decolorize) for
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Effectiveness of Basella rubra (Alugbati) Fruit Extract as a Counterstain in Gram Staining Investigators: Astilla‚ Yasmin Marie Cala‚ Maria Victoria Bianca Ko‚ Mariell Lizardo‚ Francis Dominic Mariano‚ Maria Cristina Querol‚ Maria Zennah Quinto‚ Camille Rosales‚ Ana Mariella Valmonte‚ Kyla Nicole Villalon‚ Gian Angelo 4MT-2 Statement of the Problem Can Basella rubra fruit extract be used as a counterstain in Gram staining? Introduction & Background According to H. J. Croxx‚ when microscopists
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ASEPTIC TECHNIQUES AND CELL COUNTING INTRODUCTION:- Microbes are single celled organisms and are so small that we cannot see with our naked eyes‚ microbes can only seen under microscopes .Microbes are the one of the oldest living form on earth‚ fossils of microbes were found which are said to be 3.5 billion years old . Microbe world: what is a microbe [online].[Accessed 9 April 2013].Available from: world wide web:‚microbes are found everywhere in rocks‚air‚water some of the microbes are even
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performed within a certain time frame the specimen will become contaminated. Part II: Bacterial Anatomy The purpose of this experiment is to become familiar and gain an understanding of how morphology and the arrangement of bacteria relate to staining techniques. Sample 1 In this study a female patient who had a problem that had arisen suddenly after lunch‚ had allergic reaction to something that she ate or drank had sent her to the bathroom with cramps and copious diarrhea. She knew she
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