Stain

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  • Microorganisms

    Once dry the microorganisms can be seen under a microscope. This procedure is very different from that of a differential stain. A common differential stain and the one used in this lab is the gram stain which is more complicated the simple stain and uses more than one dye. The procedure involves a primary stain, a mordant that locks in the stain, a decolorizer, and a counter stain. The use of multiple dyes allows the viewer to identify gram negative and gram positive bacteria based on whether it’s pink or purple, respectively. This occurs because of the chemical differences in these two types of bacteria; gram negative bacteria has a thin layer of peptidoglycan in the cellular membrane and an outer membrane and the gram positive bacteria has a thick layer of peptidoglycan in the cellular membrane and lacks an outer…

    Words: 1207 - Pages: 5
  • Essay On Silverfish

    Fight silverfish in the bedroom Silverfish find ideal living conditions in human habitations. In addition to the bathroom , the bedroom also offers optimal living conditions for the small animals. The insective insects belonging to the insects feel particularly well because of the prevailing temperatures and humidity. Although they are not really harmful to health and in the widest sense even useful, nobody wants to share their home or sleeping with the voracious animals. Often silverfish are…

    Words: 797 - Pages: 4
  • Gram Stain Lab Report

    When finding out unknown bacteria you have to go through several steps to figure out what it could be. I was given unknown bacteria number 28 and asked to run different testing to identify exactly what this bacterium is. I ran 6 test to determine my unknown. These test includes: Gram Stain, SIM, Sucrose, Citrate, MAC, and EMB. Each one of these test are different and they will give a positive or negative feedback which is how we will know which bacterium I have. A gram stain is one of the most…

    Words: 965 - Pages: 4
  • Stain Glass: An Analysis Of Creativity In Art

    STAIN GLASS PROJECT CRITERION A: KNOWING AND UNDERSTANDING: INQUIRY AND ANALYSIS. CONCEPTS What is a concept? A concept is simply an abstract or general idea or notion that is derived or inferred from specific instances or occurrences. KEY CONCEPT: CREATIVITY -FACTUAL Factual— Stain glass is a technique that has been present in many cultures for centuries. What is creativity? Creativity is defined as the tendency to generate or recognize ideas, alternatives, or possibilities that may be…

    Words: 2604 - Pages: 11
  • Gram Stain Test Lab Report

    I. Purpose: The purpose of this lab was to learn how to properly mount a bacteria for examination under a microscope. Also learned in this lab were methods on how to inoculate an agar or broth medium, and using aseptic techniques. Lastly, how to use stains to visualize bacterial cells, or distinguish different types of cells from one another through the usage of dye techniques such as the Gram-stain test was learned. II. Prepping/Mounting/Simple Staining Bacterial Cells Procedure: 1. Obtain 3…

    Words: 2427 - Pages: 10
  • Analysis Of Roth's Playful Pugilism In The Human Stain

    ¬¬ ‘Slipping the Punch’ – Roth’s Playful Pugilism in The Human Stain Phillip Roth’s writing is characterised by conflict between a desire to champion the individual over societal codes and conventions, and an almost fatalistic sense that these countervailing forces will always overwhelm individual self-determination and self-expression. This conflict often manifests in, at the very least, an ambivalence about language itself: as Kasia Boddy expresses it in Boxing, A Cultural History, ‘For…

    Words: 2023 - Pages: 9
  • Gram Staining Experiment

    of the cell wall of bacteria. The cell wall can stain either positive or negative, depending on its chemistry.The aim of this experiment. Gram staining was the first differential technique used and still in use to make microscopic vision of bacteria clearer while also sub-divides the bacteria into two major groups: Gram-positive and Gram –negative. This experiment should help us describe how Gram staining affects the different cell walls of the different types of bacteria, based on their…

    Words: 863 - Pages: 4
  • Microscope And Hanging Lens

    auxiliary technique used in microscopy to enhance contrast in the microscopic image. Stains and dyes are frequently used in biology and medicine to highlight structures in biological tissues for viewing, often with the aid of different microscopes. In a simple word, staining is refer to simple colony specimen with colored dye. In this study, we have carry out five experiment that used the technique of staining which are, simple staining, negative staining, endospore staining, gram staining and…

    Words: 1350 - Pages: 6
  • Gram Staining Research Paper

    Gram staining is a technique where certain stains are used to identify bacteria. It was discovered in 1884 by Hans Christian Gram where he used stains to differentiate bacterial cells in diseased lung tissue. Gram staining has evolved over time to become a trusted and common diagnostic tool used in clinical and research settings. Gram stains are mainly used to identify unknown bacteria. It is often the first test used on an unknown sample of bacteria. For medicinal uses gram staining is commonly…

    Words: 1182 - Pages: 5
  • Gram Staining In Microbiology

    Purpose Statement: The purpose of this experiment was to determine the Gram stain of the certain slant cultures we used in class, Escherichia coli and Staphylococcus aureus, under a microscope. Since it is the most important staining procedure in microbiology, it is used to distinguish between gram-positive and gram-negative organisms. The gram-positive cells stain purple, and the gram-negative stain a pinkish color. This staining is a differential stain that allows is used to identify the…

    Words: 1370 - Pages: 5
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