Escherichia coli

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  • K12 Escherichia Coli

    of K12 strain Escherichia Coli? Which household cleaning product (hydrogen peroxide, Pine-sol, Clorox Bleach, Mr Clean antibacterial liquid cleaner) is the best inhibitor of K12 Escherichia coli (E. coli) growth? The manipulated variable was the cleaning product or disinfectant on used of the Whatman antibiotic assay paper disc. The dependent variable is the zone of inhibition of the prokaryotic bacteria E. coli. In topic one IB requires that we learn about Eubacteria, traditional bacteria that are typically pathogenic, E. coli fall into this category. We also had to learn about Florey and Chain experiments, which is where I learned about zones of inhibition. The problem interests me because is important that one knows which cleaning product to use in one household to get rid of the most bacteria. The idea is that if one test the most affective cleaning product on bacteria that is not harmful one can determine the most effective cleaning product to use in ones home it so that the most harmful bacteria can be killed.…

    Words: 784 - Pages: 4
  • Escherichia Coli Growth

    The spectrophotometer analysis of Escherichia coli growth during heat application The purpose of this experiment is to determine the rate of Escherichia coli (E. coli) growth over 100 minutes in a liquid growth medium (control), and to determine the rate of E. coli growth over 100 minutes in a heated liquid growth medium. The prediction is that the control E. coli culture will grow at a faster rate exponentially over 100 minutes than the experimental bacteria culture. Consequently due to heat…

    Words: 1111 - Pages: 5
  • Classification Of Escherichia Coli

    Classification Escherichia coli is a bacterium that is mostly found in humans and other animals. It is a unicellular micro-organism, making its Domain and Kingdom Bacteria. E. coli’s Phylum is Proteobacteria because it is a gram-negative bacterium. It is also in the Phylum Proteobacteria because of the lipopolysaccharides that protect the cell membrane. E. coli is a facultative anaerobic G- bacterium, making its Class Gamma Proteobacteria. Because of its rod-shape, E. coli’s Order is…

    Words: 2189 - Pages: 9
  • My Unknown Organism: Escherichia Coli

    Unknown Organism Report I have identified my Unknown Organism #1 as Escherichia coli, or E. coli. My Unknown Organism is an anaerobic gram-negative, unicellular eubacteria. It belongs to the genus Escherichia, which is named after Theodor Escherich, a German pediatrician. E. coli is usually found in the colon of mammals, explaining the name “coli” meaning from the colon. It’s classified in the order of enterobacteriales, and the family of enterobacteriaceae. It is the most abundant bacteria in…

    Words: 785 - Pages: 4
  • Escherichia Coli

    Let’s start the introduction by talking about our main target, Escherichia coli or how it is mostly unknown, E.coli, are a diverse and large group of bacteria found food, the environment, and in the intestinal tracts of humans and animals were it normally inhabits and it can also cause infection in other parts of the body, especially the urinary tract. Its name was given by a German physician called Theodor Escherich and it is the most common member of the genus Escherichia. E.coli is “a…

    Words: 819 - Pages: 4
  • Escherichia Coli: Genetic Transformation

    active and visible. The arabinose C gene also present with the GFP recognizes and binds to arabinose so that they gene may produce the glow. A common bacteria used in this process is Escherichia coli, better known as E. coli. It is a small, single-celled bacterium with a rapid reproduction rate, making it ideal to use in transformations since the effects will be seen much faster than with other hosts. When the bacterium receives the genes from the plasmids, it provides better traits for…

    Words: 803 - Pages: 4
  • E. Coli Disease Analysis

    E. Coli Disease Research Analysis When we eat out or consume food we often don 't consider that there may be a risk of contracting illnesses and diseases. As consumers though, we should give this consideration as it’s a very real possibility. Escherichia coli is a natural anaerobic bacteria found in the intestines of animals and humans. However, there are other forms of this bacteria that can cause infections and disease (Laupland et al., 2008).The infectious bacteria can become a food borne…

    Words: 1464 - Pages: 6
  • Experiment 1.1: Nutrient Agar Plate, Sterile Negar

    coli), Staphylococcus aureus (S. aureus), Bacillus subtilis (B. subtilis)), Nutrient agar plate Experiment 1.5 commenced by dividing the Nutrient agar plate into four equal segments. Aseptic technique was used to pick up a sample of broth culture using the inoculating loop. The sample was then inoculated onto the first section of the plate. The loop was flame-sterilized after the first inoculation and the plate was re-inoculated by dragging a fraction of the first inoculated sample onto the…

    Words: 2039 - Pages: 9
  • Faecal Contamination Essay

    Faecal contamination of water is routinely detected by microbiological analysis. The approach that has been adopted is to analyses for indicator organisms that inhabit the gut in large numbers and are excreted in human faeces. The presence of these indicator organisms in water is evidence of faecal contamination and therefore, of a risk that pathogens are present. If indicator organisms are present in large numbers, the contamination is considered to be recent and/or severe. Total coliforms,…

    Words: 349 - Pages: 2
  • Gram-Positive Cocci Lab Report

    For my first plate I decided to use an Eosin Methylene Blue. This plate gives a variety of different results that are easy to interpret. A metallic green color indicates either Escherichia coli or Citrobacter freundii, purple can indicate Enterobacter aerogenes, and a pink color occurs when Serratia marcescens is plated on an Eosin Methylene Blue plate. Upon entering the lab, I discovered metallic green colonies on the plate. I then knew I had either Escherichia coli or Citrobacter freundii.…

    Words: 1454 - Pages: 6
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