Enterobacter aerogenes

Gram Negative Unknown Lab Report #20 BIOL 3444-008 Giang Nguyen TA: Malini Kotak 11/05/2014 Abstract The experiment is conducted in order to identify a randomly given unknown gram-negative microorganism. By comparative analysis of biochemical tests that were performed throughout the semester to find out its characteristics and determine the identification of bacterium out of four potential unknown was given. To figure out the characteristics, T-streak was performed to isolate…

Haemophilus influenzae, Neisseria, in addition to Actinomycetes and Fusobacteria. Resistance to bacitracin is extremely uncommon. Meanwhile, neomycin acts on both gram-positive and gram-negative pathogens including staphylococci, Proteus, Enterobacter aerogenes, Klebsiella pneumoniae, Salmonellae, shigallae, Haemophilus influenza, Pasteuerella, Neisseria meningitides, Vibro cholera, Bordetella pertussis, Bacillus anthracis, Corynebacterium diptheriae, Streptococcus faecalis, Listeria…

Biochemical Unknown I. Introduction Cultural Characteristics or morphology and biochemical tests can be used to identify and classify microorganism. By culturing microorganism in nutrient broth, slants, and on nutrient agar plates, the cultural characteristics or morphology can be determined. In this lab, the test tube 2 was incubated in a nutrient broth. The pigmentation of the tube was yellow. The media for test tube 2 was turbid. There were a few sediment on the bottom of the broth. In…

the unknown bacteria data table it showed that both the shapes and arrangements match. That helped me to narrow it down drastically since it was the only one that was shaped like the way it was. My biochemical tests matched perfectly with Enterobacter aerogenes. One huge experimental error I made was not doing the gram staining correct the first time but I tried to fix it. I had to redo my nutrient agar plates twice because the first time it seemed like there was only one microbe. It was hard to…

Sara Parks Unknown Report Introduction One of the many reasons to study microbiology is to gain a better understanding of microorganisms and the huge part they play in the world. It is imperative to know the differences between microorganisms. This knowledge is useful in many cases; for instance, a patient with an unidentified infection could be administered effective treatment if one possessed the knowledge to correctly define the microorganism. Furthermore, the purpose of this unknown…

Introduction: The purpose of the tests (culture media, motility, enzymes, etc.) we preform on the numerous bacteria in lab is to show any biological or chemical characteristics of the bacteria that may help it survive or adapt in the wild, how it may be useful or hazardous to humans, and use as general knowledge to differentiate bacteria from each other. In the Culture Media test we can use solid and liquid media to grow multiple bacteria in lab. It can help us determine what processes the…

An unknown sample #18 was obtained on November 6, 2017. The sample came in a glass test tube with a cotton swab that contain the unknown sample. To find the identity of the unknown sample, we had to conduct several biochemical tests to eliminate and narrow down possible organisms that fit the biochemical description to accurately identify our unknown organism of interest. These biochemical tests provided insight on the physical color retention of our unknown sample, and through’s the unknown…

samples. In our biochemical analysis of gram negative bacteria, we were able to determine that out of our 8 samples, Proteus vulgaris, Pseudomonas aeruginosa, and Salmonella enteritidis are unable to ferment lactose. Klebsiella pneumonia and Enterobacter aerogenes can ferment lactose to a certain extent where as Citrobacter freundii and Escherichia coli excessively ferment lactose. In our indole test, only Escherichia coli and Proteus vulgaris are able to convert tryptophan to indole. We were…