Nicole Reardon Biology 1520‚ Section P2 Effects of penicillin and temperature on the growth of Escherichia coli Abstract Bacteria growth is known to be either augmented or impeded by a number of various factors; in this experiment‚ our group tested how E. coli is affected by penicillin as well as how different temperatures can affect bacteria growth. We know that antibiotics are generally specialized against certain types of bacteria—more specifically‚ some are most effective against Gram-negative
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Escherichia coli also known as E. Coli‚ is a type of bacteria which thrives in polluted water. Many people will come in contact with this type of bacteria in their lifetime. In fact‚ E. coli is normally found in the intestine of humans and animal where it plays a significant role in the digestive system. The bacteria can also be found in raw meat and uncooked vegetables as well as polluted water. Most of the strain of E. coli are harmless therefore they will not cause illness if consumed. “One of
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Antiseptics Definition An antiseptic is a substance which inhibits the growth and development of microorganisms. For practical purposes‚ antiseptics are routinely thought of as topical agents‚ for application to skin‚ mucous membranes‚ and inanimate objects‚ although a formal definition includes agents which are used internally‚ such as the urinary tract antiseptics. Purpose Antiseptics are a diverse class of drugs which are applied to skin surfaces or mucous membranes for their anti-infective
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This article is about public and private swimming pools being contaminated with E. coli. Chlorine is not doing its job in sanitizing the human waste in the swimming pool. Human waste seems to refuse being sanitized. The Centers for Disease Control (CDC) concluded that the E. coli came from one major primary source; swimmers pooping in the swimming pool. Researchers say such contamination is due to swimmers not rinsing themselves off before going in the pool. Scientists say a person carries about
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Antiseptics and Disinfectants Introduction Antiseptics and disinfectants are extensively used in hospitals and other health care settings for a variety of topical and hard-surface applications. A wide variety of active chemical agents (biocides) are found in these products‚ many of which have been used for hundreds of years‚ including alcohols‚ phenols‚ iodine‚ and chlorine. Most of these active agents demonstrate broad-spectrum antimicrobial activity; however‚ little is known about the mode of
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RESEARCH: KAYMITO LEAVES DECOCTION AS ANTISEPTIC MOUTHWASH RESEARCHERS: LUNA‚ ZOREN KLENT A. YADAO‚ NEÑALEN Y. LOPEZ‚ HERY JR. G. MANATAD‚ DANIEL NICHOLAS MILAN‚ KIMBERLY G. LOAYON‚ KENJI EDWARD L. VILLEJO‚ JEPHTHA MILCAH RESEARCH ADVISER: MRS. MARY LOUIE GALAURA CHAPTER I. INTRODUCTION Chrysophyllum cainito is a tropical tree of the family Sapotaceae‚ native to the lowlands of Central America and the West Indies. It grows rapidly and reaches
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DETTOL PORT FOLIO DETTOL SOAPS DETTOL LIQUID • For Bruises & Cuts • Insect bites • Washing of clothes • Mopping of floors • Shaving • Bathing • Cleansing of skin DETTOL HANDWASH DETTOL PRICKLY POWDER Available in two sizes 75gm and 200 gm DETTOL MPC A new product Dettol Multipurpose cleaner recently launched and added in the Dettol family. Available in two variants floral and
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Introduction The population of a bacterium will grow successfully in a particular pattern known as ‘logarithmic growth’ if the location is appropriate and the proper nutrients are present. The bacteria numbers will increase and most likely continue to double in this area over time with optimal conditions. Optimal conditions meaning that there are no dangers or limiting factors‚ to inhibit growth in this area‚ such as disease‚ predators‚ competition or lack of food. At first the bacteria should reproduce
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Main text. Questions. Page 3. 1. What does e.coli stand for? E.coli stands for Escherichia coli. 2. What are the symptoms associated with E.coli bacterial infection? The symptoms are diarrhea‚pain‚cramping‚nausea and vomiting. 3. give a detailed comparison of the levels of the e.coli bacteria over the five week period as given above. Page 4. 4. What could possible reasons
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The effect of increasing substrate concentration on rate of an enzyme reaction. Enzymes are biological catalysts that lower a reactions activation energy making possible many of the reactions needed for life to exist. Enzymes have a high specificity which have been explained by many theories such as Fischer’s lock and key. Currently the most widely accepted theory is the induced fit hypothesis proposed by Koshland in 1958. This hypothesis solves some of the problems with the Lock and key theory
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