Gram-positive bacteria

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  • Biochemical Tests On The Gram Negative And Gram Positive Bacteria

    3760 Words  | 16 Pages

    able to isolate both the gram-negative and gram-positive bacterium. In order to obtain the correct test results and to ensure the right gram mixed unknown is identified there had to be a series of eight biochemical tests performed on the gram-negative bacterium and five biochemical tests performed on the gram-positive bacterium. Introduction The sole purpose behind this conduction was having the ability to understand just how the gram-negative and gram-positive bacteria can be distinguished and

  • What Is The Characteristics Of Gram Positive Or Gram Negative Bacteria?

    1578 Words  | 7 Pages

    major classes of bacteria that contain peptidoglycan, Gram-positive and Gram- negative. Gram positive bacteria will stain dark purple due to their thick peptidoglycan cell wall, while Gram negative will stain pink due to their thin peptidoglycan cell wall. Many Gram positive and negative bacteria are considered pathogens because they are capable of causing disease in humans. In order to treat properly individuals who are infected with a pathogenic Gram positive or Gram negative bacteria, the identity

  • Identifying A Gram Positive And Gram Negative Bacteria From A Mixed Broth

    1836 Words  | 8 Pages

    _________ (50 Possible) Title: Identifying a Gram Positive and Gram Negative bacteria from a mixed broth Abstract: I inoculated a T-Soy agar with bacteria number 118, for this I used a streak isolation method. Next, in order to distinguish between Gram positive and Gram negative I used a streak isolation technique on a CNA plate, then performed the same exact procedure on a MacConkey plate. The results from the CNA plate showed the Gram Positive bacteria was an Alpha hemolyzer. Next, I used a P

  • What Is The Positive And Negative Results Of A Gram Negative Bacteria?

    753 Words  | 4 Pages

    Citrobacter freundii. After conducting the Gram stain to ascertain that the unknown bacterium was a Gram negative bacilli, the species were inoculated in multiple biochemical tests. The tests that led to the conclusion of a Gram Negative bacteria were Oxidase, lactose fermentation, MR, VP, Indole, and H2S production. For the oxidase test, there were two categories one was for positive and negative results of the test. The positive result had three different types of bacteria while the negative result was the

  • Gram Positive And Gram-Positive Bacteria

    710 Words  | 3 Pages

    Gram-negative and Gram-positive bacteria can be distinguished by conducting biochemical tests. Its growth can be examined on selected mediums containing metabolic inhibitors such as antibiotics. The medias utilized in this project are: media containing the antibiotic vancomycin, Eosin Methylene Blue-lactose (EMB-lactose) agar, and Phenylethyl alcohol (PEA) agar (Holbrook and Leicht 2017). Vancomycin is most effective at inhibiting the growth of Gram-positive cocci (Rotschafer et al. 2005). EMB-lactose

  • Gram Positive Bacteria And Gram Negative Bacteria

    802 Words  | 4 Pages

    Bacteria can be divided into two types of species, gram positive bacteria and gram negative bacteria. To determine whether a certain type of bacteria was classified tests were conducted by Hans Christian Gram; who discovered the differences within the cell walls of the bacteria. Gram positive bacteria have a thick wall which consists of the protein peptidoglycan. This is opposite to gram negative bacteria which has a thin cell wall, which fold over each other (Wells, 2017). They retain a much thinner

  • Correlation Between Gram Positive And Gram Negative Bacteria Essay

    1773 Words  | 8 Pages

    between Gram positive and Gram negative bacteria. We also used this lab to examine our mixed culture, which had been Gram stained, under the microscope. Theory and background The bacterial cell wall is the outer layer of the cell that aids in structural support and protection from the outside environment. Bacteria can be identified by the structure of their cell wall and classified into two groups known to have different cell wall types. Two of these types are referred to as the Gram positive and Gram

  • Biology : The Unknown Bacteria

    964 Words  | 4 Pages

    the skills and test that are taught and learned in microbiology were applied into learning what the unknown bacteria culture was. There were multiple procedures and test done in order to gain all the information needed to determine which bacteria was given. In order to find what the bacteria was the first step was finding the right environment and temperature that would allow the bacteria to thrive and grow. Determining this is one of the most important steps in being able to obtain conclusive results

  • Lab Report : The Laboratory Experiment

    1277 Words  | 6 Pages

    correctly isolate and identify the two microorganisms, one Gram-positive and one Gram-negative, from a mixed culture the student receives. The mixed culture I received was number 21. From

  • Lab Report On Isolation Of Phototrophic Bacteria

    949 Words  | 4 Pages

    Mileva Gajic Bio Sci 383 – 804 Rini Banerjee Isolation of Phototrophic Bacteria Purpose The purpose of this lab is to isolate photoheterotrophic bacteria using an enrichment culture from a sample of marine sediment. The enrichment culture provides the photoheterotrophic bacteria with specific conditions to promote growth. Procedure There were no changes made in the procedure. Procedure from the lab manual was followed. Results Figure 1. Marine sediment was placed at the bottom of the test