Examples of unknown lab reports for microbiology. Unknown Lab Report Microbiology, Sample of Essays 2022-12-18
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Microbiology is the study of microorganisms, which are tiny living organisms that can only be seen with a microscope. These microorganisms include bacteria, fungi, viruses, and other types of microbes that play important roles in various fields, including medicine, agriculture, and the environment. In order to understand the behavior and characteristics of these microorganisms, scientists often conduct experiments in the laboratory and document their findings in lab reports.
Lab reports are written documents that describe the methods, results, and conclusions of a scientific experiment. They are used to communicate the results of a study to other researchers and to document the work that has been done. In the field of microbiology, lab reports are a common way for scientists to document and share their findings on the behavior and characteristics of different types of microorganisms.
There are many different types of lab reports that may be used in microbiology, depending on the nature of the experiment and the goals of the researchers. Some examples of unknown lab reports for microbiology include:
Identification of unknown microorganisms: In this type of experiment, researchers may be given a sample of an unknown microorganism and asked to identify it based on its physical and biochemical characteristics. The lab report for this experiment would describe the methods used to identify the microorganism, the results of the tests, and the conclusion reached about the identity of the microorganism.
Antimicrobial susceptibility testing: In this type of experiment, researchers may test the susceptibility of different microorganisms to antimicrobial agents, such as antibiotics. The lab report for this experiment would describe the methods used to conduct the test, the results of the tests, and the conclusion reached about the susceptibility of the microorganisms to the antimicrobial agents.
Enzyme activity assays: In this type of experiment, researchers may measure the activity of enzymes produced by microorganisms. The lab report for this experiment would describe the methods used to measure enzyme activity, the results of the tests, and the conclusion reached about the activity of the enzymes.
Microbial growth experiments: In this type of experiment, researchers may study the growth of microorganisms under different conditions, such as temperature, pH, or the presence of different nutrients. The lab report for this experiment would describe the methods used to study microbial growth, the results of the tests, and the conclusion reached about the growth of the microorganisms.
Overall, lab reports are an important part of the scientific process in microbiology and are used to document and communicate the results of experiments to other researchers. These reports provide a detailed record of the methods, results, and conclusions of a study and help to advance our understanding of microorganisms and their behavior.
Example of Unknown Lab Report, Microbiology
Lab Manual for General Microbiology. Procedures were followed as stated in the lab manual 1. Whether the tests performed identified specific enzymatic reactions or metabolic pathways, each was used in a way to help recognize those specifics and identify the unknown cultures. Escherichia coli, also known as E. This vial contained two unknown bacteria, one Gram negative and one Gram positive, that required identification.
It is a common inhabitant of soils, and production of enzymes and proteases enable it to contribute to nutrient cycling in decomposing plant residue leading to its classification as saprophytic. This alone did not narrow down the field because every possible Gram-negative bacterium was rod shaped. Other bacteria have been beneficial to humans; that are found in some of our favorite foods. Dark blue colonies with green metallic sheen or pink. These included, oxidase, catalase, and coagulase test.
The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. There was only one colony that was apparent. A microscope was then used to identify whether unknown streak B was a gram negative or gram positive. Selecting the correct antibiotic for this particular bacteria is especially important. This experiment will also determine if our bacteria is a fermenter of sugars and if it is catalase positive. By going through the steps to identify the microorganism, students began to comprehend infectious disease. Bacillus Subtilis Final Risk Assessment.
This aspect was crucial for many reasons; within the medical field, knowing what bacterium a patient has been infected with could mean the difference between life and death. Then I decided I would run the biochemical tests on organism B. It was incubated for 2 days at 37° C. The methyl red test produced a negative result and the oxidase test provided no color change indicating a negative result. A gram positive rod was the outcome, ruling out the gram positive cocci.
Microbiology Unknown Lab Report Free Essay Example
This eliminated Staphylococcus aureus, Staphylococcus epidermidis, and Enterococcus faecalis as possibilities since they present as spherically-shaped cocci. Example of a Microbiology Unknown Lab Report by Taylor Autry Introduction In this paper I will discuss the processes of how I came to find my two unknown bacteria. An unknown bacterium was handed out by the lab instructor. Procedure a Place a drop of the Latex Control liquid in one of the circles on the test card. Therefore, it was concluded that the unknown was Bacillus cereus.
Microbes can be identified by their cellular structure and function. The second test performed was a Urea Test which also gave a clear positive result confirming that unknown gram positive bacteria as Staphylococcus epidermidis because Staphylococcus aureus gives a negative result. The results of the lactose test not only showed fermentation, but a very shiny green metallic coloring. Unknown Lab Report Microbiology There are legion grounds for placing unknown bacteriums. A Casein and Maltose test were performed both of which came back positive.
Isolation of the Gram negative unknown was confirmed. The procedure of designation was achieved by using processs learnt during the semester. Only Enterobacter aerogenes was negative, while the other two Klebsiella pneumonia and Proteus vulgaris were positive for urease. It is fact that human beings survive in microorganisms. After a Gram stain was performed, Gram positive rod-shaped bacteria were observed microscopically. In addition to using sterile technique, the procedures for these tests were followed via the lab manual for general microbiology created by McDonald, Thoele, Salsgiver, and Gero 1 , unless otherwise stated in this report. Then, a Glycerol test was performed but the result came back as negative when it should have been positive to match the two previous tests.
The flow charts show how the conclusions were reached. The object of this test was to find out which bacteria can or cannot produce urease to break down urea. A negative methyl red test and negative oxidase test confirmed the identity of Unknown 124B as Bacillus subtilis. They are easily killed by boiling the water they may be living in or using a basic sterilization process 4. Since we are in microbiology are cooking for the clumping Of Epitomes found on the surface Of Antigen that Will bind to specific Antibody that were made by Immune system B cells. In order for an individual to receive treatment for a certain bacterium, this bacterium must first be identified. Unknown 124B was provided by the lab instructor after isolation on a nutrient agar plate was not attained.
The only explanation for the inconclusiveness of the tests is contamination of the sample at some point after the gram stain was performed. Oil and I bacteria I Staphylococcus erasures gram-positive bacteria. Both of the results should have been consistent as far as the fermentation of either carbohydrate. I was assigned unknown A. No clearing around the colony growth on a milk agar plate indicated a negative result for casein hydrolysis. The consequences of the biochemical trials along with deductive logical thinking and riddance led to the designation the unknown bacteriums. The Methyl Red test was positive for the presence of glucose fermentation.