the presence of oxygen. It is a rod shaped non-motile unicellular prokaryote. Three types of bacteria from the genus name are associated with Yersinia pestis. They are share a common characteristic which is that they are pathogenic towards humans. The three known bacterium are Yersinia pseudotuberculosis‚ Yersinia enterocolitica and‚ Yersinia pestis. Yersinia pestis is and will forever be known as the bacteria that caused the bubonic/black plague. Y. pestis is a zoonotic disease known to cause fatal
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What Is Microbiology? Microbiology is the study (logy) of very small (micro) living (bio) things. Microbiology is the study of microorganisms. These "bugs" include: bacteria (that’s the Latin plural for bacterium); viruses (that’s the non-Latin plural for virus - virii sounds weird‚ so I don’t say it); and‚ fungi (that’s the Latin plural for fungus - which by now you have guessed‚ or already knew‚ and may not be all that interested to know‚ anyway). Microbiology is actually made up of several
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Hand Soap Effectiveness on Escherichia Coli Abstract: Bacteria are an essential part of many different living organisms and ecosystems across the globe. Without bacteria there would have never had been life in the first place. But some bacteria have evolved to cause to humans‚ resulting in the need to eliminate them through such methods as soap. Hand soap is a crucial part of human health‚ especially in such places as schools and hospitals. In this experiment I wanted to determine the effectiveness
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pathogens; any organism that causes disease. Pathogenic microorganisms include bacteria‚ fungi and viruses. Pathogens cause disease by producing toxins and damaging cells. An example of a disease causing pathogen is the cholera bacteria‚ Vibrio Cholerae. Cholera is a bacterial infection caused by drinking contaminated water or eating good that has been in contact with contaminated water‚ with symptoms including severe diarrhoea and stomach cramps. The cholera bacteria produces a toxin that affects chloride
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Chapter 1. Microbiology – Diversity of Organisms Microorganisms- too small to be seen with the unaided eye “germ”- rapidly growing cell Microbes in our lives Pathogenic- disease causing Decompose organic waste Producers in ecosystem (photosynthesis) Produce industrial chemicals such as ethanol and acetone Produce fermented foods ( vinegar‚ cheese‚ bread) Produce products used in manufacturing (cellulose) and treatment (insulin) Designer Jeans: Made by Microbes? Stone washing- Tricoderma
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relating to the development of biofilms. The first couple of chapters focus on the state of the water supply. The authors review methods for studying the epidemiological spread of waterborne infections and those used in surveillance and control of pathogenic microbes. He includes the methods used for the detection of pathogens of public health importance in drinking water. In the later chapters the authors pay close attention to biofilm development within drinking water systems‚ emphasizing the public
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these types of hot springs‚ the orange‚ yellow and brown colors are due to pigmented photosynthetic bacteria which make up the microbial mats. The mats are literally teeming with microbes. Other non-photosynthetic bacteria‚ as well as various archaea and algae are also residents of the hot spring community. Figure 3. Cross section of a microbial mat showing the different layers of pigmented bacteria. Measurement is in centimeters. Although most microorganisms are unicellular and do not differentiate
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sterilized unless air is allowed to enter the vessel through an opening. Living organisms can spontaneously generate from nonliving matter. True or False? False The scientists usually given credit for disproving the theory of spontaneous generation of bacteria are: Tyndall & Pasteur Miller and Urey’s experiments attempting to recreate the prebiotic environment produced a rich mixture of complex organic chemicals from simple chemicals. True or False? True Miller and Urey’s experiments attempting to
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completed in order to produce isolated colonies of the organism on an agar plate. The unknown test tube with the bacteria is flame sterilized using a Bunsen burner. Once the bacterium test tube has been flame sterilized‚ a flame sterilized inoculating loop will be used to gather
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1-3 and 5 for the Quiz! Module 1 - Foundations of Microbiology and Lab Safety – Chapters 1 & 2: Know the various classes of microorganisms and unique features and characteristics of each: Bacteria- one of the two domains of prokaryotes; all medically important prokaryotes are in the domain Bacteria. bacteria are single-celled or noncellular spherical or spiral or rod-shaped organisms that reproduce by fission. Protozoans-Group of single-celled eukaryotic organisms. protozoans are colorless mobile
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