in Microbiology‚ and use it to collect and examine microbial species from the physical environment. The physical environment around the lab will be utilized to find out the variety of different microbial species growing in and around the lab. This investigation will help in preparation for the individual projects that will be done at the end of the semester. Materials and Methods: The lab chosen was Exercise 24: Isolation of Bacteria in our Physical Environment. For this lab‚ four TSA Petri
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Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
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Effect of Osmotic Stress and Temperature on Microbial Growth BIO 3400-002L – Microbiology Lab 1 Effect of Osmotic Stress and Temperature on Microbial Growth Luiz Felipe Isidoro ABSTRACT Evolution allowed primitive forms of life to develop proteins and enzymes that made it possible for life to evolve under environments with hostile conditions‚ such as high salt and heat. More specifically‚ some bacteria selected genes that code for peptides with stronger intermolecular forces‚ coping
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kill that species. For the purpose of bacteria identification‚ numerous tests have been devised to find out the exact species in question. However‚ because new strains continue to emerge‚ it is of the utmost importance that microbiologists and microbiology students understand the nature of each bacterial species and how that species creates and maintains its complex communities. Of equal
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which bacteria can be mechanically diluted and therefore isolated as independent colonies representing different bacterial species. The isolation of independent bacterial species from various environmental sources is important in all branches of microbiology since bacteria are ubiquitous and live in microbial communities of mixed populations. Populations in microbial communities or ecosystems may interact and cooperate in their efforts to obtain nutrients from the environment with the waste products
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Comparative antimicrobial activities of aloe vera gel and leaf. African Journal of Biotechnology Vol. 4 (12)‚ pp. 1413-1414‚ 2005. ZDENKA CVETNI‚ ANDA VLADIMIR-KNE. Antimicrobial activity of grapefruit seed and pulp ethanolic extract. Department of Microbiology Faculty of Pharmacy and BiochemistryUniversity of Zagreb in conjunction with the Croatia and Department of Pharmacognosy Faculty of Pharmacy and Biochemistry University of Zagreb‚ Croatia. 2004.
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Module 12: Microbiology Internet Scavenger Hunt Ebola Log on to the CDC Special Pathogens web site http://www.cdc.gov/ncidod/dvrd/spb/mnpages/dispages/ebola.htm Then click on the menu button Ebola Hemorragic Fever Distribution Map Where do most of the Ebola outbreaks seem to occur? Most seem to occur in the Congo and Uganda. Now go back to the first page and click on Information on Ebola hemorrhagic fever Read through this fact sheet. What did you find interesting about Ebola? I found
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color from red to yellow (indicating production of acid). To confirm gas-producing bacteria were coliforms‚ we chose one positive tube and inoculated an EMB plate and incubated the inverted plate at 37°C for an additional 24 hours and then at room temperature until the next lab session. For the second lab session we observed the EMB plate looking for colonies with a metallic sheen or glossy sheen. We then selected a suspected coliform
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Microbiology Lab Quiz #2 Study Guide Exercise 9 -- The Gram Stain Compare and contrast simple and differential staining techniques. Simple Staining Simple staining is useful in determining the basic morphology of an organism. Simple staining involves only one reagent i.e. crystal violet‚ basic fuchsin‚ or methylene blue. Simple dyes used to stain bacteria have a positive charge cationic (+)‚ therefore‚ they are attracted to the bacteria that are usually negatively charged anionic (-) Depends
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David Kennedy Bio 210 Lab Report 1 10/11/13 Microbial Growth Background Information: This lab was conducted in order to understand basic differences among differential and selective media‚ while recognizing how each media is used to isolate and identify microorganisms (Wistreich‚ 2003). The first microorganism analyzed was Staphylococcus epidermidis. This organism is gram-positive‚ single celled‚ arranged in grape-like clusters‚ and cocci in shape (Bukhari‚ 2004). S. epidermidis is approximately
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