� Microbiology is the study of microorganisms� Microorganisms‚ roughly‚ are living things that are too small to be seen with the naked eye� Microorganisms cannot be distinguished phylogenetically from �macroorganisms� (see variety of microorganisms‚ below)� Microbiology is more a collection of techniques: aseptic technique‚ pure culture technique‚ microscopic observation of whole organisms‚ etc.� Microbiologists isolate specific‚ culturable microorganisms from wild populations
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“selectively toxic.” Why is it an important feature of antimicrobial agents? A substance or drug is selectively toxic if the agent used in it is able to kill the microorganism that it is meant to without harm to the host that has taken the drug. This is very important to microbial agents in that it enables these agents to inhibit a microorganism by interacting with microbial functions or structures different from those of the host; thereby showing little or no effect to the host. 2. What are broad
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polyamides‚ are produced by microorganisms. Microorganisms are used for the biotechnological production of biopolymers with tailored properties suitable for high-value medical application such as tissue engineering and drug delivery. Microorganisms are used for the biosynthesis of xanthan‚ alginate‚ cellulose‚ cyanophycin‚ poly(gamma-glutamic acid)‚ levan‚ hyaluronic acid‚ organic acids‚ oligosaccharides and polysaccharide‚ and polyhydroxyalkanoates. Microorganisms are beneficial for microbial
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Chapter 1 1.1 The Scope of Microbiology (Living things too small to be seen without magnification) 1. Various Types of Microorganisms (Microbes): a. Bacteria‚ algae‚ protozoa‚ helminthes (parasitic invertebrate-worms) and fungi. 2. Multiple types of Professions Using Microbiology: b. A staff microbiologist at the Centers for Disease Control (CDC) and Prevention c. Epidemiologist d. Immunologist e. Food Inspectors f. Plant Microbiologists
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Microbial spoilage There are three types of microorganisms that cause food spoilage -- yeasts‚ moulds and bacteria. Bacteria are round‚ rod or spiral shaped microorganisms. Bacteria may grow under a wide variety of conditions. There are many types of bacteria that cause spoilage. They can be divided into: spore-forming and non-spore-forming. Bacteria generally prefer low acid foods like vegetables and meat. In order to destroy bacteria spores in a relatively short period of time‚ low acid foods must
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Project 1: Antimicrobial Activity of Soil Isolates John Franklin Farrar Department of Biology and Microbiology and Biology Address BOX 22750 BOWEN HALL‚ RALEIGH‚ NC‚ 27607 Abstract: Isolation and characterization of microorganisms is a practice that aids in Increasing ones knowledge of a laboratory setting and it helps improve on Using sterile technique. Isolates of soil microbes can be categorized and Characterized based on a number of criteria ranging from gram-staining
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To: From: Re: Louis Pasteur Louis Pasteur: Greatest Achievements Louis Pasteur was one of the most important scientists of our time. The foundation of our knowledge about health and disease comes from the discoveries of this one man. He made many discoveries and solutions for problems of the every day life that are still in effect today. Pasteur was born on December 27‚ 1822 in a little town called Dôle in the foothills of the Jura Mountains of eastern France. When he was five years old his family
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is directed to determine the effect of pH on growth of microorganisms by varying the pH ranges: pH3‚ pH6‚ pH7‚ pH9; the last part is about effect of oxygen requirement on growth of microbes‚ where the microorganisms grow depending on oxygen demand. Introduction: Microorganisms are classified depending on growth requirements. In this laboratory the microorganisms are divided due to effect of temperature‚ pH and oxygen demand. The microorganisms are divided into three groups depending on temperature
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Dr. Akinyemi‚ A. A. Aquaculture and Fisheries Management University of Agriculture‚ Abeokuta‚ NIGERIA. Microorganisms • Microorganisms is the existence of every minute living organisms or they are living features that can be seen with the aid of microscope‚ microscope‚ most of them are normally singlecelled while some may exist in multicellular forms. • These microorganism‚ though minute and microscopic‚ are a very powerful group of creatures. • They can make healthy animals sick
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scientific nomenclature that uses genus and specific epithet names. List 4 diverse sources of microorganisms that demonstrates microorganisms are ubiquitous (everywhere). Explain the orgin of microbes‚ i.e.‚ where do microbes come from? (Think "Cell Theory") Identify four activities of microorganisms that are beneficial to human existence. Identify two activities of microorganisms that are detrimental to human existence. Identify the importance of Koch ’s postulates. Explain
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