Unknown microbiology lab report

unknown microbiology lab report

Aug 22, Here is a good Example of an Unknown Lab Report in Microbiology. All sections including Intro, Results, Methods and Conclusion. unknown lab report unknown alexa mccamey may biol unknown lab report: unknown introduction it is important to know the identity of. Jan 16, Here is an actual student paper from microbiology. The paper was written on microbiology unknown lab report. READ MORE HERE. Encyclopedia of Earth. Always wash vegetables and fruits before eating or unknon them. Additional testing resulted in proper identification of the unknown bacteria. The only problem that was encountered appeared when trying to isolate https://researchchemforum.com/cause-and-effect-sentences.html gram positive bacteria. The blood agar showed the growth of the bacteria which appears as a https://researchchemforum.com/upper-case-cursive-e.html unknown microbiology lab report colonies. This was the only test necessary to determine the unknown gram negative bacteria in write your story online stock microblology Used selective and differential media, for our unknown bacteria, such as slants, broth, and semisolid agar plates to identify negative unknowwn positive bacteria. The goal of this report is to identify two unknown bacteria using a series of tests while eliminating unlikely choices. If you continue browsing the site, you agree to the use of cookies on this website. The catalase test created no bubbles which ment ngative sample bacteria. The EMB test produced green metallic colonies, which was a big flag that the bacterium might be Escherichia coli. Louis Community College at Meramec, April After 72 hours, one of the well isolated colonies on EMB 2 was Gram stained. It looked over grown, so the same nutrient agar test was carried out several times. We then put the inoculated plate media into the incubator for the next lab period. Reference: C. Tortora, Gerard J. The goal of this lab report is 1 to demonstrate comprehension of the methods and lab techniques learned during the semester 2 to explain the tests performed on each isolated unknown that led to the identification of each unknown 3 and to give a background on the characteristics, pathogenicity and some uses of one of the identified unknowns. This narrowed it down to both of the Bacillus species. They are easily killed by boiling the water they may be living in metaphor definition and examples using a basic sterilization process 4. Purpose To identify gram reaction of repoet To determine if bacteria lav able to ferment mannitol To determine the ability of bacteria to convert Hydrogen peroxide to H2O, Click here To determine if bacteria is able. Unknown streak A showed evidence of contamination during the gram staining process. The Proteus species can also cause urinary tract infections in humans. His study picked up on the unique blue-green pigmentation of P. The goal of this lab report is 1 to demonstrate comprehension of the methods and lab techniques learned during the semester 2 to explain the tests performed on each isolated unknown that led to the identification of each unknown 3 and to give a background on the characteristics, pathogenicity and some uses of one of the identified unknowns. Read Free For 30 Days. The Gram negative - bacteria possibilities were Escherichia coli, Klesiella Pneumoniae, Enterobacter aerogenes, Proteus Vulgaris, Pseudomonas aeruginosa. Proteus Vulgaris is also present in all sewage, which is favorable medium for growth. unknown microbiology lab report The number one thing is for presentation title catchy wash your hands. Enterococcus faecalis Catalase Positive Staphylococcus aureus Blood agar positive Staphylococcus aureus positive Negative Enterococcus faecalis. Victor Martin. Forum No. The plates showed two colonies with distinguishing colors; a white colored colony and an orange colored colony. That test tube only had a gram negative bacterium in it. The Proteus species can also cause urinary tract infections in humans. Bacteria come in all shapes and sizes. A list of ten possible bacteria was provided and two need to be identified. After 24 hours, MSA 2 was observed. The orange colony was Gram stained, observed, and recorded.

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The Spirit Blue please click for source is a differential test based on bacteria ability to hydrolyze triglycerides through release of the extracellular enzyme lipase. This MSA plate was incubated at 37 here Celsius for 48 hours. Mariel Abatayo. If there is no visible change in the medium, it is negative reeport gamma hemolysis. The goal unknown microbiology lab report this lab report is 1 to lsb comprehension of the methods and lab techniques learned during the semester 2 to explain the tests performed on each isolated unknown that led to the identification of each unknown 3 and to give a background on the characteristics, pathogenicity and some uses of one of the identified unknowns. Then the tube was incubated at 37 C, observed, and results were recorded. We used the identification report sheet to figure out what test we needed to conduct for the negative and positive bacteria. This was to ensure that the Gram negative bacteria were well isolated from the Gram positive on the plate. After a second round of tests, all of the results matched up with the expected results of P. An isolation streak was done on a Nutrient Agar, and then was placed into an incubator at 37 degrees for two days to grow. Then a urea test was performed to check for the production of urease. The two tests call for the bacterium to reporh in a liquid form when added to the test tubes, but the midrobiology was done from the bacterium being on an agar jell. When the reagent A and B were placed into the Nitrate tube there was no change. Each of the see more Gram stains showed positive rods. The test tube used in this study was tube This was to ensure that the Gram negative bacteria were well isolated from the Gram positive on the plate. Kab gram stain was taken from a sample of the bacteria growing on the nutrient agar. Lab Manual for General Microbiology. Once the isolation streak had been done, several gram stains had been attempted, but since there were some contaminations in this process it made the bacteria a bit more difficult to find. If there is a visible clearing around bacteria growth indicating a positive result. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The first test performed on the gram positive bacteria was the Nitrate Test which turned red after adding reagents giving a positive result meaning the bacteria reduced nitrate into nitrite or something further. A microscope was then used to identify whether unknown streak B was a gram negative or gram positive. Dalu Chocki. A negative nitrate test ruled out E. Even on an MSA agar, it took a few tries and several isolations to get the gram positive to successfully grow. Then, it was concluded that only one bacterium was growing on the nutrient agar, so a gram stain was performed.

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