Gram-positive bacteria

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    Essay On Unknown Bacteria

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    the disease it causes. At the beginning of class, the TA handed each student an agar plate containing some unknown bacteria, each one was numbered. Mine was number 14. The teacher then asked the students to use the techniques used in class (sterilize the inoculated loop, get a small amount of the unknown bacteria, incubate) to identify the unknown bacteria. To start, the unknown bacteria had to be successfully isolated. Using a wire loop, a small sample of the numbered test tube was plated on…

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    In this experimental research, to study the antibacterial properties of the extract of Callistemon viminalis, the standard strains of these bacteria, which are common in urinary tract infections, have been prepared in a lyophilized way in the microbiology laboratory of Fasa University of Medical Sciences: Staphylococcus aureus ATCC 25923, Staphylococcus epidermidis ATCC 29212, S.saprophyticus ATCC 15305, Enterococcus fecalis ATCC 29212, Proteus vulgaris PTCC 1079, Klebsiella pneumoniae ATCC…

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    of a body part effect the bacteria population present on the said part? What has more bacteria the inside of a person's mouth or a person's index finger? My biology class is learning how to conduct experiments, and last week for our experiments we were broken into groups and given instructions to swab any two different objects. After swabbing our two objects, we were then suppose to wipe each swab onto a divided petri dish in order to see which object had more bacteria. My group could have…

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    The aim of this experiment is to identify and classify of an unknown bacterial isolate. Morphological and Biological test were preformed to identifiy the isolates characteristics. The following characteristics were tested: gram-stain, motility, morphology, hemolysis, lactose fermetation, mannitol fermentation, osmotolerance, aesculin hydrolysis, starch hydrolysis, gelatine hydrolysis, amino acid decarboxylation, lipid hydrolysis, lactose fermetation, casein digestion, catalase enzyme production,…

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    phenyaline slant. When ferric chloride was added to phenylalanine deaminase tube, it turned into army green color( positive result) which indicated that unknown microorganism contains phenylalanine deaminase enzyme. On the other hand, no color change in the slant indicates negative result for this test. The choices between two…………………. was narrowed down By performing this test. The positive result for phenylalanine deaminase indicated the unknown microorganism #404 is P.vulgaris. To check…

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    Materials and Methods Materials used in experiment 1.1A: Nutrient agar plate Materials used in experiment 1.1B: Nutrient agar plate, Sterile cotton swab In experiment 1.1B a nutrient agar plate was opened and left in an arbitrary spot in the laboratory and left untouched for three hours, at the end of the lab it was collected and incubated at . In part B a swab/swab rinse method was preformed in order to inoculate the nutrient agar plate. A sterile cotton swab was taken out of its packaging, an…

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    used to identify lactose-fermenting coliforms. This medium is typically used to test dairy products and water. The medium contains lactose which acts as a carbohydrate source, bile salts and crystal violet that act as an inhibitory agent towards gram-positive microorganisms and neutral red is added to serve as a pH indicator, microorganisms lower the pH which results in the colonies turning red. Some of the organisms that grow on this medium are: Escherichia coli ,Enterobacter aerogenes and…

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    Acceleration Lab

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    previous section we found the following results. The effect of acceleration under the influence of additional mass. Data from our force lab. Column 1-3 shows the results gathered in the first trial from 50, 20 and 10 gram weights. Column 4-6 shows the results gathered from 50, 20 and 10 gram weights when an additional 500g was added to the…

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    Gram Staining Lab Report

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    Unknown A and Unknown B bacteria’s. These techniques are gram staining and metabolic testing. I first used Gram staining to distinguished and identify the bacteria’s. Han Christian discovered gram staining in 1882, he had biopsy a patient lung that had pneumonia. The main purpose for Gram staining is to identify if is Gram positive or Gram negative by using differential staining. While Gram staining shows the difference between Gram Positive and Gram negative and its size, shape and morphology.…

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    1.Introduction: Background/Aim. 1.1 Nature of the microorganism: Enterococcus faecalis was placed under group D streptococci because of similar lysis characters; Identified as Gram positive, non-motile, anaerobic fermentative, lactic acid bacteria; are commensal inhabitant of intestinal bacteria and opportunistic pathogens. They occur singly or in pairs or chains. 1.2 Economic importance: Enterococcus faecalis is also used as a probiotic for production of Mediterranean cheese and meat products…

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