was to identify the unknown bacterium using biochemical tests and various methods that had been learned from previous the microbiology laboratory class. Identifying the unknown bacterium was determined by separating and differentiating possible bacteria based on specific biochemical characteristics. The differential tests used to identify the unknown cultures were Gram staining, oxidase, indole test, urea test, and casein test. MATERIALS AND METHODS: The unknown bacteria were given out by the
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Introduction Bacteria are microscopic unicellular prokaryotic organisms characterized by the lack of a membrane-bound nucleus and membrane-bound organelles. They are remarkably adaptable to diverse environmental conditions and are found in bodies of all living organisms and on all parts of the earth. The purpose of microbial biochemical tests is to identify the unique traits it yields and with that knowledge we can then categorize them in groups and specify them by scientific name. These experiments
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Microbiology is requires not only an academic understanding of the microscopic world but also a practical understanding of lab techniques and procedures used to identify, control, and manipulate microorganisms. The proper identification of a microorganism is not only important in a microbiology lab but also in the medical, industrial, and pharmaceutical fields. In this lab report, lab techniques and procedures learned during this course were performed to assess each students’ practical knowledge
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can be used to identify bacteria. A scientist by the name of David Bergey was the first person who proposed the system of bacterial classification in which bacteria are grouped according to Gram reaction, metabolism, and morphology. The first edition of Bergey’s Manual of Systematic Bacteriology was published in 1984. This book can be used to identify a microorganism. The purpose of this experiment is to identify an unknown bacteria using the skills learned in microbiology laboratory this semester
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Escherichia coli and Bacillus cereus from an Unknown Culture. By: Richard Martinez MCB-2010L Microbiology Lab Dr. James Rogers 11/29/13 Unknown bacteria were determined to be Escherichia coli and Bacillus cereus due to their morphological, physiological and metabolic properties. I. Abstract In a laboratory setting, it often becomes necessary to identify an unknown organism. In this experiment, researchers classified some unidentified bacteria based on their physical structure, colony
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Unknown Identification Introduction to Microbiology Lab Professor M Biology Lab 1913 11/11/2014 I. Introduction A series of tests was completed in order to identify an unknown microorganism. A gram stain reaction test was done. A gram stain reaction test is used to differentiate between two bacterial species. The two species; gram positive and gram negative bacteria have varying properties of their cell wall structural composition. The gram positive bacteria contain a thick
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Determination of Two Unknown Organisms From Sample number 16 Intro: This was an experiment to identify two unknown organisms from sample number 16. The importance of this experiment is to identify two differential bacteria that are commonly found in the world and in the presence of everyday life. Considerations of organisms that could be in the unknown tube include, but not limited to Bacillus subtilis, Clostridium sporogenes, Serratia marcescens, Micrococcus roseus, Micrococcus luteus, Sarcina
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HOW TO WRITE AN UNKNOWN LAB REPORT IN MICROBIOLOGY GENERAL Unknown reports in microbiology are written in scientific format. Scientific writing is written differently from other types of writing. The results of the exercise or experiment are what are being showcased, not the writing. The purpose of scientific writing is not to entertain, but to inform. The writing should be simple and easy to understand. There is a specific style that must be followed when writing scientific reports. Scientific writing
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Antibiotic Resistance and Gram Staining of Unknown Bacterial Samples Microbiology Lab July 1, 2013 Abstract: In this final laboratory assignment, each student was given an agar plate. Each plate was swiped with a pure culture bacteria sample. Where the sample came from and what kind of bacteria was unknown to the students. We were asked to observe the colony morphology on our plates and to perform the antibiotic sensitivity/resistance test. The plates were put into a 37° incubator oven
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Unknown bacteria determined to be Alcaligenes faecalis because of its morphological, physiological and metabolic properties. In a laboratory setting, it often becomes necessary to identify an unknown organism. In this experiment, researchers classified an unidentified bacterium based on its physical structure, colony morphology, optimal conditions and metabolic properties. A Gram stain using crystal violet, iodine, and safranin and a simple stain using methylene blue characterized the organism’s
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