coli and S.albus are subject to causes changes in their growth rates and habits. To test whether the growth rates and habits of the bacteria’s E. coli and S. albus are subject to change when to a varying amount and type of light. Hypothesis: that the different types of light will affect the growth rate of the bacteria’s. From prior knowledge and assumption of the environment‚ it is believed that higher temperatures will assist in the growth rate in the agar plates. Therefore it is believed that
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experiment tested the effectiveness of reducing microorganism (bacteria) with the use of various hand soaps. b. Hypothesis: If the Harris Teeter Foaming Hand Soap is more effective in reducing bacterial growth than the Soft Soap hand soap‚ then there will be less bacterial/microorganism growth present on the agar plate for the Harris Teeter Foaming hand soap. II. Materials and Methods c. Obtain 3 agar plates and 2 different brands of hand soap. Label each agar plate and draw a line to
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Fayetteville State University Bio 430 Dr. Allen Spray it or wipe it!!! The scientific study on the effectiveness of CiDecon® Plus Wipes vs. CIDECON ® Q Aerosol on a mixed culture of bacteria (Serratia marcescens Staphylococcus epidermidis) living on publicly used door knobs Fateema Thomas Andrea Donaldson Aryan Jaimangal Tiffany McNeil John Posey Abstract Germs are a mist in every corner of the world. They are stealth and literally‚ are on everything. This can range from your
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from our home. It had absolutely no visible growths that could be observed with the naked eye. The corner of the bathroom tub is a completely different story! It had just been cleaned 2 days prior to this experiment. The growth that was observed after only 48 hours of incubation was disgusting. The area of agar used was almost completely covered in a mold like growth. Since it had been cleaned just 2 days prior to‚ I had expected it to yield almost no growth. I was wrong! After this experiment‚ that
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were running properly. More than 20 kinds of experiments were performed to identify unknown bacterium. The first test is gram stain. The result is pink rod which means gram negative rod shape cells. Also‚ in nutrient broth tube‚ it is observed to growth bacterium. To determine the production of protease‚ we do the gelatin stab. The result of this experiment is negative which has solid texture. The motility is also positive because there is no visible stabbed line. Next‚ the Thioglycollate test
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Method 1. Sterilise all of your equipment with ethanol‚ blue flame or disinfectant if you can flame it. 2. Collect all equipment together ensuring you collect your goggles and gloves as you are using a flame and gloves and goggles are part of safety precautions. (don’t wear gloves with messing with Bunsen burner only goggles‚ but use gloves when messing with chemicals ensuring goggles on all the time) 3. Clean your surface with disinfectant to sterilise your lab work surface‚ this will prevent
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LAB Report #3 Introduction: In this lab we have focus on Isolation of bacteria from environment. Microorganisms are found throughout the environment: in the air and water; on the surface of any object such as clothes‚ walls‚ furniture; in soil and dust; and on and in our own bodies (skin and mucous membranes). In order to demonstrate the ubiquity and diversity of microbes in the environment‚ samples from immediate areas of the environment and/or from your body will be obtained and cultured
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curriculum is easily adaptable to accommodate any number of students. In this lab‚ students identify an unknown bacteria using a biochemical method and a molecular method. For the biochemical method‚ students use a combination of differential growth tests and enzyme tests developed for clinical use. For the molecular method‚ students PCR amplify and sequence the 16S rRNA gene from their bacteria‚ then use BLAST to search the bacterial database and identify the species that most closely matches
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plates were examined for bacterial growth of two different colonies. On a Nutrient agar plate two different cultures were observed. In order to proceed identification‚ those cultures were isolated as separate organisms‚ using inoculating streak technique and incubated until the next class period. The expected result was supposed to show Gram positive and Gram negative bacterium growing on a separate media. Having checked two Nutrient plates‚ signs of visible growth of two different bacterium were present
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Microbiology 20 Laboratory Final Exam Guidelines The laboratory exam will be given on Tuesday December 4th (sections 0375 and 3252) or Thursday December 6th (section 3253) and consist of an open book portion given in CMS 105 followed by a practical portion (closed book) to be given in the lab (CMS 002). You will not need a Scantron. For the open book test‚ be sure to bring any resources you may need including your lab manual‚ lab notebook‚ safety guidelines and handouts. For the practical portion
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