Microbiology Unknowns Lab Report - Essay Example

Comments (1) Cite this document
Manipulative skills and cognitive microbiological knowledge are essential for the identification of microorganism beyond their genus classification, i.e. to their species identification. The use of previously performed experiments and procedures laid the foundation of…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.2% of users find it useful
Microbiology Unknowns Lab Report
Read TextPreview

Extract of sample "Microbiology Unknowns Lab Report"

Download file to see previous pages Spurious results may be obtained in some cases that departs from the expected norms for a particular species, may be attributed to strain differences within the given species. The unknown samples are required to be handled with care and precision. Identification procedures adopted, identified four bacterial species in the unknown samples, they are: Enterococcus faecalis, Citrobacter freundii, Klebsiella pneumoniae and Streptococcus pyogenes
Microorganisms are ubiquitous and they provide benefit or show their harmful impact on the human/ animal or plant population in varied ways. The body of knowledge that has accrued since these early years has been instrumental in making clinical microbiology a major component of laboratory or diagnostic medicine. It is essential to have an understanding towards these microorganisms for this isolation and identification of these infectious pathogens is imperative. This understanding aids in rapid diagnosis and treatment of the disease, prudently, intelligently and rapidly.
Many experiments are being carried out that have relevance with their application in the clinical microbiology. These experiments encompass, isolation and identification of unknown cultures, the use of selective and differential media and various biochemical tests used to separate and identify various microorganisms (Messeley, 2003).
The first step to onset the experiment is to perform Gram staining procedure. This segregates the gram positive and gram-negative organisms. This is followed by the streak-plating to observe the colony characteristics. The next step is the use of selective media for the preparation of pure cultures followed by the performance of biochemical tests. The present study was performed to apply all the methodologies learnt in the microbiology laboratory class designed for the detection of an unknown bacterium (Messeley, 2003).
Prepare Nutrient agar broth subculture of unknown sample and refrigerate ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Microbiology Unknowns Lab Report Essay Example | Topics and Well Written Essays - 1500 words”, n.d.)
Retrieved from https://studentshare.org/miscellaneous/1560123-microbiology-unknowns-lab-report
(Microbiology Unknowns Lab Report Essay Example | Topics and Well Written Essays - 1500 Words)
“Microbiology Unknowns Lab Report Essay Example | Topics and Well Written Essays - 1500 Words”, n.d. https://studentshare.org/miscellaneous/1560123-microbiology-unknowns-lab-report.
  • Cited: 0 times
Comments (1)
Click to create a comment or rate a document
dejahhermiston added comment 3 months ago
Student rated this paper as
This essay was always my weak point. I could never finish it well. Still, after I found this particular essay, I understood how it should be completed. So, I performed my research afterward and completed the essay in several hours, instead of months as it was previously.

CHECK THESE SAMPLES OF Microbiology Unknowns Lab Report

Microbiology Lab Report: Bacteria

...for his contribution to immunology. A significant discovery was made in the year 1977 when Carl Woese determined that archaea had different evolution traits than bacteria. The branch of Science which specifically involves the study of Bacteria is known as Bacteriology which is a branch of Microbiology. Bacteria are present in almost every nook and corner of the earth ranging from hot volcanic regions to ice cold polar caps. There are approximately 5?1030 species of bacteria found in earth. In fact, it has been found that the number of bacteria found in the human body exceeds the total number of cells. A number of bacteria causes disease and is known as pathogenic bacteria. Some of the diseases caused by bacteria are...
4 Pages(1000 words)Lab Report

Microbiology lab report

...? “Unknown Lab Report” Unknown Number Bacterium Identification Part The main motive to perform this study was to determine the presence of an unknown microorganism present in the provided sample. The study encompasses classification of bacteria based on their chemical reactions, pH levels and osmoregulation. It is highly imperative to classify bacteria and to identify microorganisms as they have enough potential to cause various diseases. Essentially, identification process is highly pragmatic for the correct diagnosis and treatment. Identification of the bacteria provides line of treatment. Thus, bacterial identification is the foremost step to accomplish further investigation...
3 Pages(750 words)Lab Report

Membrane filtration (expriment)

...? Microbiology Of Unknowns Lab Report Lab Section TA Manipulative skills and cognitive microbiological knowledge are essential for the identification of microorganism in samples of food and water as they are the potential carrier of pathogenic micro-organisms and can endanger life. Pathogens present in water are causal organisms of gastrointestinal trouble encompassing typhoid, dysentery and cholera. Essentially, waste water should be treated and purified before disposal. Bacteriological assessment of water purification methods that supply potable water is also imperative to follow the norms set by the Environmental Protection Agency (EPA). As potable water is procured from surface...
5 Pages(1250 words)Lab Report


...?Isolation and identification of the unknown micro organism Beneficial and harmful bacteria are present in all the food particles. Bacteriaproduce some biologically important molecules in the food and are thus beneficial to the human beings. Probiotics contain specific strains of bacteria that are useful for increasing and maintaining the gastrointestinal tract bacterial load. In the present study, the unknown microorganism present in the Probiotics, maozrella cheese and camembert cheese were analyzed using the biochemical tests such as catalase, oxidase, latex agglutination, Gram’s staining and string test. From the biochemical results it was identified that the unknown microorganisms...
6 Pages(1500 words)Lab Report

Food Microbiology

...Food Microbiology Aim: To perform microbiological assessment of the food items. Introduction: Food Microbiology is the study of the microorganisms which inhabit, produce or contaminate food items. These microorganisms may be deleterious and are responsible for food spoilage. On the other hand, some of these microorganisms are essential for preparing various food items especially the dairy products like cheese, yoghurt and other fermented foods like bread and various beverages like beer and wine (Roberts, D, 2003). Raw and unprocessed food is naturally contaminated with a range of micro-organisms which may include pathogenic forms. The microbiology laboratory is concerned with testing foods to both determine the level of microbial... medium...
11 Pages(2750 words)Lab Report


...and Enterobacteriaceae. The chief function of MacConkey agar is to isolate Enterobacteriaceae bacterial strains from food, waste water, feces and urine. It also serves as a differential medium for discerning enteric-gram negative bacteria. (CONDA, 2008) Enterobacteriaceae are visible forms of lactose-fermenting colonies of Gram negative bacteria (Microbiology and Immunology Online University of South Carolina School of Medicine, 2007) Strains of nonmucoid colonies became visible, confirmed by the API 20 E test. While the MRS Agar is used for isolating strains of Lactobacillus, the Slanetz & Bartley Agar is used to detect the count of Enterococcus. MRS Agar is used for detecting strains of Lactobacillus. (Neogen, 2008)...
30 Pages(7500 words)Lab Report

BIOL 260-Microbiology (Bacterial Unknown Lab report)

...Discussion The main motive to perform this study was to determine the presence of unknown microorganisms present in the provided sample. This study encompasses classification of bacteria based on their chemical reactions temperature, pH levels and osmoregulation. It is very imperative to classify the bacteria and to identify these microorganisms as they have enough potential to cause various diseases. This is essential to carry out the correct diagnosis and treatment of the individual. Identification of the bacteria provides line of treatment. As the preliminary examination about the unknown sample, Gram Staining was performed to categorize bacteria into Gram positive or Gram negative. On the basis of...
2 Pages(500 words)Lab Report

Microbiology: Unknown Organism

...Microbiology Lab Report 23 February Unknown Organism Report Purpose To identify an unknown microorganism by performing a series of biochemical tests on a pure bacterial culture. Materials and Methods 1. Carbohydrate Fermentation: Two culture tubes containing sucrose broth and lactose broth were inoculated with a pure culture of the unknown microorganism and incubated at 37oC. Each broth contained phenol red, a pH indicator that changes from red in basic environment to yellow in acidic conditions. The color change was an essential indicator of acid formation from the fermentation of the sugars during the growth of bacteria. An inverted Durham tube filled with the broth...
4 Pages(1000 words)Lab Report

Detection of Organic Molecules in Unknowns

... Biology Lab Report 30 October Detection of Organic Molecules in Unknowns Introduction The Beer Lambert’s law illustrates that the amount of light conveyed through a solution is related to the concentration of the substance (“Beer-Lambert Law”). Therefore, the concentration of substances can be determined by measuring the amount of absorbed light using spectrophotometry. This experiment aimed at finding the concentrations of unknown substances using varying concentrations of standard solutions. Methods Five different starch concentrations ranging from 0 to 100 µm/ml were prepared to make a total volume of 2 ml. The concentrations of the solutions were determined using spectrophotometry by measuring the absorbance of the solutions... , which...
1 Pages(250 words)Lab Report


...Food microbiology al affiliation Background information: Bacteria is the common source of food poisoning. Bacteria multiplies under the right environmental conditions This experiment is aimed to find out how food can be evaluated for the presence of common food poisoning pathogens by convectional bacterial culture methods. Method: Food was evaluated for the presence of common food poisoning bacteria by convectional bacterial culture methods Total bacterial counts to determine (CFU/ul) and detection of different bacteria were done using both selective and non-selective media and statistical analysis done using MINITAB 17. Results: Four different bacteria were detected in all the turkey samples. The CFU/ul in the plates increased... an...
11 Pages(2750 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Microbiology Unknowns Lab Report for FREE!

Contact Us