------------------------------------------------- Module title: EUC_4_005 Design and Practice ------------------------------------------------- Occurrence Number: [Overtype your occurrence Number here] ------------------------------------------------- Lab Group Number: [Overtype your lab group number here] ------------------------------------------------- Course: [Overtype name of course here] ------------------------------------------------- ------------------------------------------------- Student Name: [Overtype
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Antibiotic Lab Report By: Sierra Toll Hour: 6 Title: The effects of antibiotics on the growth of Escherichia Coli Problem: How do antibiotics affect the growth of E coli? Hypothesis: If Penicillin is applied to the bacteria‚ then the zone of inhibition will be larger. Background: The purpose of this lab was to see how effective a certain antibiotic is to kill E coli. The lab tested three antibiotics‚ Penicillin‚ Erythromycin‚ and Neomycin. The zone of inhibition‚ which is the amount of space
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Abstract: Bacteria consists of a large domain of prokaryotic microorganism in which can fight of antibiotics allowing the bacteria to become antibiotic resistant. In this lab report‚ we discover the most effective disinfectant that would work best in killing the harmful bacterial strain‚ Bacillus subtilis. KB testing or disc diffusion antibiotic sensitivity testing is measured through the diameter in millimeters to find how resistant the antibiotic to the bacteria. The hypothesis of Windex fell correctly
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tested. The solutions in the opaque tubes were placed on a slide with a drop of blood and observed under a microscope and compared to a control slide with just a drop of blood. Sketches of the observations were made and analyzed. A leaf of Elodea was placed on a slide along with solution X‚ observed‚ and drawn. Solution Y was then drawn through the slide and the previous method was repeated. The same was done with solution Z. The results were gathered and
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molecules are delimited to move across the gradient‚ causing osmosis to slow down). In addition‚ pure water is always hypotonic solution‚ meaning that the pure water will cross the vegetables’ semipermeable membrane and level the concentration on both sides. Nevertheless‚ isotonic solutions eventuate when the two solutions emulate each other at equilibrium‚ and hypertonic solution is the propensity for water to flow out of the cell to help balance the concentration of the
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Ph Lab Report Bryon Kim 123013 B(2) Biology Background information/Research PH paper (litmus paper) determines how acidic or how basic a substance is. The paper changes color accordingly to color code on the pH scale. The pH scale starts from 0 to 14. The lower the number the more acidic it is. Zero is the most acidic‚ and 14 is the most basic while 7 is the neutral number for example water. Examples of an acid is lemon juice or multi purpose cleaner. Examples of a basic substance is shampoo or liquid soap
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General Biology I‚ Fall 2011 Lab Report 3 Name: Luan Nguyen Date: 11-30-11 Lab: Gel Electrophoresis Purpose of this lab: In this laboratory investigation‚ students will analyze hypothetical human DNA using restriction endonucleases and gel electrophoresis to match samples from a crime scene to a suspect. Introduction: Your analysis unit will use gel electrophoresis to determine the guilty party. Electrophoresis is a technology in science that allows an individual to separate
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A streak culture was performed on a Tryptic Soy Agar Plate for isolation and purity and then incubated at 37 degrees Celsius for 24 hours. A gram stain was performed to determine whether the bacterium was a gram negative or a gram positive. After performing the gram stain‚ I concluded that by the appearance of purple spherical clusters resembling grapes that is was a gram positive cocci. A Catalase test was then performed using hydrogen peroxide. A positive catalase test was observed
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Introduction The purpose of this lab is to determine the concentration of two bases‚ carbonate and bicarbonate‚ by using a potentiometric titration. We can determine the concentration of the bases in the reactions ( H+ +CO3- < ==> HCO3- and H+ + HCO3- < ==> H2CO3-) by the way the pH of the solution changes. The way the pH changes when a strong acid is added can be used to determine the concentration of the strong and weak bases that are present in the solution. We can determine this by
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samples obtained from another 10-mice/exposure group were available for determination of each of the 11 clinical chemistry parameters. Necropsy was performed on all treated and control animals. Selected organ were excised‚ rinsed in a chilled saline solution‚ then blotted on filter paper and weighed separately to calculate relative organ weight. Then selected organ were fixed and preserved in Bouin’s fluid‚ a quantitative mixture of picric acid‚ formalin and acetic acid for histopathological and molecular
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