subsequent combination of the products with iron produces a black color. A positive test for the bile esculin slant is a completely blackened tube (Lindell et al‚ 1975). A triple sugar iron (TSI) slant is used to identify sugar fermentation in a microorganism; it contains a red pH-sensitive dye that will turn yellow under acidic conditions‚ such as contact with the acidic byproducts of sugar fermentation. The three sugars‚ sucrose‚ lactose and glucose‚ are present in specific concentrations‚ 1%‚ 1%
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Louis Pasteur was a chemist‚ turned microbiologist‚ turned veterinary medicine pioneer‚ turned vaccine maker. As a chemist‚ he was originally interested in the light bending properties of certain crystalline solutions. During the course of his study of these solutions he discovered that certain types of solutions were created by biological processes. As he investigated this phenomenon he was led to investigate the field of fermentation where he essentially discovered the aerobic and anaerobic
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A General Essay on Bioremediation of Contaminated Soil Dana L. Donlon and J. W. Bauder‚ Professor‚ Montana State University-Bozeman MSSE Graduate Student and Professor‚ respectively Bioremediation is defined as use of biological processes to degrade‚ break down‚ transform‚ and/or essentially remove contaminants or impairments of quality from soil and water. Bioremediation is a natural process which relies on bacteria‚ fungi‚ and plants to alter contaminants as these organisms carry out their
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Informative Speech Outline Template Topic: The Antibiotic Resistance Crisis General purpose: To inform others of the current antibiotic resistance crisis Specific purpose: To inform others about how overly prescribed antibiotics are causing an increase in resistance and what can be done to slow down the process Introduction a. People get sick every single day. Of course there are those that are more susceptible to illness‚ like children and our elderly population. What almost everyone has in common
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“About 4 billion years ago‚ microbes appeared on earth and about 130 years ago the first microbe was discovered” (Crawford ix). Microorganisms are the simplest and smallest form of living things on earth and they are very powerful. Microbes can be used for ecological purposes‚ some are also pathogenic and others have helped in the medical field to create antibiotics. The author‚ Dorothy H. Crawford is Professor of Medical Microbiology and Assistant Principal for the Public Understanding of Medicine
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February 26‚ 2010 Bioremediation I. Introduction A. Biotechnology is a scientific field that finds uses of microorganisms for agricultural‚ medical‚ industrial and technological purposes. The field of biotechnology growing at an exponential rate and branches off into several categories. B. Bioremediation is a subcategory of biotechnology that involves microorganisms and the environment. Although bioremediation is primarily established my man‚ it is a fairly natural process using microbes
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areas such as: bacteriology‚ virology‚ parasitology and immunology. The goal of microbiology is to increase the specific knowledge of a known microorganism and by extension counter the spread of harmful microorganisms and to learn practical applications of research results. A microbiologist studies the structure‚ metabolism‚ genetics and ecology of microorganisms such as bacteria‚ viruses‚ fungi or algae. A microbiologist also studies in the relationships of these organisms among themselves and how they
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breathing‚ eating‚ drinking‚ cuts‚ wounds or medical procedures like catheters or injections. The five main routes are: * Contact – * Direct transmission involves direct body surface-to-body surface contact and physical transfer of microorganisms from an infected or colonised person to a susceptible host. This may occur between patient and carer during patient care that involves direct personal contact‚ or between any two persons (patients‚ carers‚ others) in the health care setting.
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The Contributions of Louis Pasteur Sarah E. Gibson Haywood Community College BIO 175 IN1 Louis Pasteur is believed to be one of the most important contributors of microbiology. Pasteur was born in Dole‚ France on December 27‚ 1822 and died in Saint Cloud on September 28‚ 1895. Pasteur attended primary school in Arbois‚ France and he attended secondary school in Besancon. In 1840 Pasteur received his Bachelor of Arts and in 1842 he received his Bachelor of Science degree at the Royal College
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fungi (mold/ yeast) growth on clothe and glasses sample. What we think that it might happened was: (a) – Clothe and glasses sample that we took were too small. (b)- It wasn’t the right food source and conditions for that specific type of microorganism to
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