Modeling bacterial growth is important in maximizing the efficiencies of biological processes. Although there are many different methods of modeling bacterial growth‚ this experiment focuses on the Monod equations. However‚ in order to use the Monod equations‚ the maximum growth rate and Monod constant must be found. Here we show how the maximum growth rate and Monod constants can be obtained for Escherichia coli using M9 media in a bioreactor at 37 °C and 500 RPM. The maximum growth rate is also
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Fighting Bacterial Growth The purpose of this lab was to determine the effectiveness of antiseptics‚ disinfectants‚ and antibiotics on bacteria. The hypothesis was that if bleach was used‚ it would be the most effective because bleach is commonly used to clean and disinfect various things. The variables that were tested were antibacterial soap and Scope mouthwash for the antiseptics; bleach and ammonia for the disinfectant; and Cipro‚ erythromycin‚ and tetracycline for the antibiotics. All of these
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identify an organism from a mixture of two unknown bacterial species. In order to accomplish this‚ I first plated my unknown mixture on Tryptic Soy Agar (TSA)‚ Columbia Naladixic Acid (CNA)‚ and MacConkey’s Agar (MAC) plates. After 48 hours of incubation‚ it was unclear that two different bacterial colonies had grown on my TSA plate. Only one type of colony was evident. However‚ it was apparent that I had successfully isolated two different bacterial species by examining my MAC and CNA plates. Only
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BACTERIAL MENINGITIS BY JAY DOMANTAY JAY DOMANTAY ANATOMY 151 HERBERT MAY 11‚ 2009 BACTERIAL MENINGITIS A bacterial infection of blood poisoning in the meninges called bacterial meningitis affects toddlers‚ adolescents and young adults. The infection strikes nearly 3‚000 Americans each year‚ and 10 to 12% of those infected will die. Among those who survive‚ approximately 20 % live with permanent disabilities‚ such as brain damage‚ kidney disease‚ hearing loss or loss of limbs.(“Prevention
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inhibits the enzyme peptidyl transferase. This inhibition results to the prevention of the transfer of amino acid for growing peptide chains which leads to the inhibition of the formation of bacterial protein. (Michigan State University‚ 2011). Chloramphenicol is a broad-spectrum antibiotic. (Hitner et al.‚ 2016). Bacterial microorganisms become resistant by the inactivation of chloramphenicol through the enzyme acetyltransferases. (Rang et al.‚ 2016). Chloramphenicol resistance are very common in Staphylococcus
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Bacterial Fermentation Secondary article Article Contents Volker Mu¨ller‚ Ludwig-Maximilians-Universita¨t Mu¨nchen‚ Munich‚ Germany . Introduction Under anaerobic conditions‚ in the dark and in the absence of electron acceptors‚ organic compounds are catabolized by strictly anaerobic or facultatively anaerobic bacteria by internally balanced oxidation–reduction reactions‚ a process called fermentation. In fermentation‚ the organic compound serves as both electron donor and acceptor‚ and adenosine
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immediate threat to human health. [1] In this article we explore contamination from this particular strain of E. coli bacteria (O157:H7) and enteric viruses‚ their potential threats and how to test the water for such contamination. Bacterial Contamination Bacterial contamination of water is usually in the form of coliform bacteria. Coliform bacteria live in soil/vegetation and in the gastrointestinal tract of animals and humans. They thrive in warm‚ wet and dark places.
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The Effects of Antibiotics on Bacterial Growth Biology II 1996 Bacteria are the most common and ancient microorganisms on earth. Most bacteria are microscopic‚ measuring 1 micron in length. However‚ colonies of bacteria grown in a laboratory petri dish can be seen with the unaided eye. There are many divisions and classifications of bacteria that assist in identifying them. The first two types of bacteria are archaebacteria and eubacteria. Both groups have common ancestors dating to more
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Advanced Food hygiene Assigment question 6 Non Bacterial Food Posioning Food poisoning can be caused by the consumption of food contaminated by substances other than bacteria. This can occur by contamination of the food by chemicals‚ the ingestion of poisonous plants and by eating fish or shellfish that have been feeding on poisonous plankton or living in contaminated waters. Several foods contain naturally occurring poisons. This is more common in plants; there are hardly any animals that are
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Clinical Microbiology Milena Ivakovic Western Governors University Bacterial Morphology Task 11 Clinical Microbiology A: In wet mount stain‚ color of the slide is same gray‚ colorless and glossy. Liquid or fluid appearance is visible. Bacteria and background don’t have a much of difference in color. Although‚ bacteria are defined and visible noted. Most of the time they are single round cells. In direct stain with crystal violet‚ again background is colorless and glossy. Bacteria is blue and some
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