“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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causative agent of botulism‚ in canned food. Does not kill endospores of thermophiles‚ which are not pathogens and may grow at temperatures above 45oC. Control of Microbial Growth: definitions Disinfection: Reducing the number of pathogenic microorganisms to the point where they no longer cause diseases. Usually involves the removal of vegetative or non-endospore forming pathogens. May use physical or chemical methods. * Disinfectant: Applied to inanimate objects. * Antiseptic: Applied
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to keep their taste & quality for long time certain care should be taken while using them. Moreover there are certain limits to how long food quality can be preserved (canned foods‚ n.d.). There are numerous microorganisms that can contaminate canned food products. One type of microorganism is the thermophilic bacteria. Their ability to produce spores resistant to heat and desiccation enables them to withstand the canning process and ‚ under favorable temperature conditions in storage‚ to cause
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Effects of Antiseptics and Disinfectants Purpose: The purpose of this lab is to discover substances that can slow the growth of‚ or kill‚ microorganisms. Hypothesis: The antiseptic that will prevent the growth of bacteria the most is iodine. The disinfectant that will prevent the growth of bacteria the most is bleach. Procedure: To begin the lab‚ turn the agar plate over and divide the plate into four quadrants and label the agar plate whether you
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lab A. Define the term selectively toxic. Why is it an important feature of antimicrobial agents? Selective toxicity is the ability of a chemical or drug to kill a microorganism without harming its host. Selective toxicity is important to microbial agents because it enables these agents to inhibit or kill a microorganism by interacting with microbial functions or structures different from those of the host thereby showing little or no effect to the host. B. What are broad and narrow spectrum
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dissection Act or process of dividing‚ taking apart stethoscope microorganisms pasteurization antiseptic asepsis vaccines anesthesial psychiatry telemedicine geriatric confidentiality worker’s compensation chronic outpatients occupational therapy recreational therapy hydrotherapy immunizations rehabilitation communicable obstetrics orthopedics urology managed care co-payment deductible preventive microorganism bacteria virus pathogen anaerobic aerobic parasites rickettsiae
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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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microbiota known for their enormity and connectivity in the body. Collectively‚ the gut microbiome contains tens of trillions of microbes‚ among which are more than 1‚000 species of bacteria and 3 million microbial genes (Luckey‚ 1972; Savage‚ 1977). Microorganisms are born into
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evaluate the information obtained from these techniques‚ and ability to effectively communicate the information. There are many reasons for knowing the identity of microorganisms. The reasons range from the knowing the causative agent of a disease in a patient‚ so as to know how it can be treated‚ to knowing the correct microorganism to be used for making certain antibiotics. This study was done by applying all of the methods that have been learned so far in the microbiology laboratory class for
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Harley−Prescott: Laboratory Exercises in Microbiology‚ Fifth Edition Front Matter Preface © The McGraw−Hill Companies‚ 2002 PREFACE Take interest‚ I implore you‚ in those sacred dwellings which one designates by the expressive term: laboratories. Demand that they be multiplied‚ that they be adorned. These are the temples of the future—temples of well-being and of happiness. There it is that humanity grows greater‚ stronger‚ better. Louis Pasteur (French chemist‚ founder of microbiology
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