differential media and inhibits the growth of gram-positive bacteria while also using a colour indicator to tell the difference between organisms that ferment lactose and those that don’t. E. coli will give off a metallic green sheen when grown in EMB due to metachromatic properties in the dyes used‚ E. coli movement using flagella and the strong acid end products associated with fermentation. Salmonella grown in XLD agar: XLD can commonly be used as a selective growth medium for Salmonella and Shigella
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CHAPTER-1 INTRODUCTION 1 INTRODUCTION The organisation can be defined as “the planned coordination of the activities of a number of people for the achievement of some common‚ explicit purpose or goal‚ through division of labour and function and through a hierarchy of authority and responsibility.” Organisations are not just means used by groups of people to achieve some goals. They present different images like‚ Organisations as machines Organisations as living systems Organisations
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SMALL AND MEDIUM ENTERPRISES(SME) IN BANGLADESH: AN OVERVIEW OFTHE CURRENT STATUS Table of Contents: 1.0 The Case for the SMEs.................................................................................................................. 2 2.0 Place of SMEs in the National Economy of Bangladesh................................ 3 3.0 Growth and Structural Transformation of SME................................................... 4 4.0 Constraints to SME Growth.........
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this was further traced to a rice salad. Environmental Health Officers investigating this outbreak suspected it may have been caused by Bacillus cereus (B. cereus). The presence of large numbers of B. cereus in a food is indicative of active growth and proliferation of the organism and is consistent with a potential hazard to health. The diagnosis of B. cereus can be confirmed by the isolation of more than 105 B. cereus organisms per gram from epidemiologically implicated food‚ but such testing
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Gaspar SBI3U1 10/07/13 The Effect of Disinfectants and Antiseptics on Bacteria Growth Abstract The purpose of this lab was to determine the effect of disinfectants and antiseptics on bacterial growth. By observing the effects of 5 different inhibitors including alcohol‚ bleach‚ soap solution and distilled water‚ it was determined what antiseptic or disinfectant was able to best inhibit this kind of bacterial growth. Nutrient Agar was poured into a Petri dish with four quadrants and then a pipette
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BANANA TISSUE CULTURE INTRODUCTION Plant Tissue Culture is culturing of any part of the plant in a specially defined growth media under aseptic laboratory condition in Petri dishes‚ test tubes or in any other suitable glass containers. The plant nutrient media consists of macro and micro salts‚ vitamins and desired levels of plant growth hormones. Depending upon the plant species genetic nature and with help of above supportive media various forms of callus/embryos/shoots/ roots or direct plantlets
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structure‚ bacteria are excellent subjects for laboratory studies. This investigation will introduce you to techniques of microbiology that will be of use to you throughout your biological work. Procedure 1. Heat the test tubes of sterile agar medium in the water bath until the agar melts. 2. Remove the test tubes from the water bath. Let them cool enough to hold in your hand‚ but not so much that the agar becomes solid again. Perform the following transfer as quickly as possible. You must work
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The ten Petri dishes that exclusively did not contain an antibiotic in the bacteria culture served as the control. There were ten trials for the control and each level of IV. The experiment began by cleaning the work area and sterilizing it with 70% ethanol. Then trypticase soy agar (TSA) was poured into six groups of 60 Petri dishes (See Appendix 1). The dishes were labeled based on the antibiotic used and were left to dry and solidify at room temperature. After an hour‚ the dishes were placed in
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Incubate the plates for 48 hours. 8. After incubation‚ observe the plates for microbial growth Name Biology 274 Section D030 Lab 1 – Ubiquity of Microbes Complete the following table. Source of microbes: Sink Faucet Colony Type 1 Total # on plate ____________ Colony Type 2 Total # on plate ____________ White Board Toilet Mouth Overall Colony Appearance No growth No growth No growth Many colonies/punctiform
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002141-0012 Nuba Jackson IB Biology Microbiology IA How effective is Lysol in the reduction of bacterial growth compared to Pinesol in reduction of E. Coli growth in agar at room temperature? Background Information: Pinesol and Lysol are both common household disinfectants that make very big commercial claims; both claim to kill 99.9 percent of bacteria. Lysol contains
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