be compromised by bacteria. This lab will culture washed and unwashed lettuce‚ as well as fresh unopened milk‚ and milk that has been opened for 7 days. The prediction for this lab‚ is that the unwashed lettuce and the opened milk will have the most bacteria growth. All results are meticulous within the expectations of the lab report. II. Purpose The principle of this experiment is to have a thorough perceptive of: • Culture washed and unwashed lettuce on agar plate. • Culture fresh and opened
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purpose of this lab is to isolate a bacterial population from the normal throat flora. A streak plate method will be used to obtain a pure culture of a Gram positive coccus genus of bacteria. Several biochemical tests will be performed to aid in the identification of this unknown bacterium. Biochemical tests are a series of tests used to identify certain bacterium The various tests that are used in this lab are the catalase test‚ oxidase test‚ blood hemolytic test‚ MSA‚ blood agar‚ and PEA/ab sens
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loops were sterilized by setting them above the cone of the flame to make the loop red‚ then left them to cool in the test tube tack for streaking. The media included a liquid (YED media that was made by 3g yeast extract‚ 6g anhydrous dextrose‚ 6g agar‚ and 300 mL tap water). The liquid media was on a hot plate‚ then an oven mitt was used to carefully transfer onto 4 petri dishes at a tilted angle‚ with the petri dish lids at an angle as well to reduce airborne contamination. After the end of each
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completed on an agar plate but on one a much larger scale and where techniques can be perfected before the use of agar plates and specimens are used. Because this experiment uses materials that represent those used in the streaking on agar plates the ability to simulate the events that occur when streaking is similar and allows for visualization instantly. In this experiment materials will be gathered that are representative of the tools need to complete the actual experiment of agar plate streaking
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For this experiment you will need 39 agar plates‚ sterile cotton swabs‚ a concentrated amount of Escherichia coli (E. coli)‚ three different levels of antibiotic (Ampicillin: 1mg‚ 5mg‚ and 10mg)‚ a bunsen burner‚ metal tweezers‚ an incubator‚ 27 broths‚ and a ruler which should all be provided through your laboratory. For the first generation‚ you will be using 12 plates. Three of the plates will be labeled G1 control‚ three of the plates will be labeled G1/1 mg‚ three plates will be labeled G1/5
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TITLE: Toxicity Testing and Determining the LC50 INTRODUCTION: Our main objective for this experiment was to determine which three chemicals were going to be the most toxic to the brine shrimp by adding drops of vinegar‚ bleach and ammonia to the controlled water. We found that the vinegar was the most effective and the quickest. The ending results were very interesting when being compared to our hypothesis and we learned that some chemicals can react faster than others and each contains a different
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Case Analysis Kaspersky Lab: From Russia with Anti-virus Industry Background: Software Security Cybercrime has become a fast growing concern for the 21st century as businesses‚ institutions and individuals grow into an interconnected web of computer networks. Online business transactions‚ along with the sharing of personal information‚ are vulnerable to a host of disasters that can reap economic and social havoc. Some sources say that today‚ cybercrime costs more than $1.0 trillion to society--Global
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Your Full Name: UMUC Biology 102/103 Lab 1: Introduction to Science INSTRUCTIONS: On your own and without assistance‚ complete this Lab 1 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus). To conduct your laboratory exercises‚ use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering
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MgSO4 .7H2O‚ 0.2; CaCl2‚ 0.55; NH4Cl‚ 0.4; agar‚ 1.5. A stock solution of the dye was prepared and used for all studies. The sample collected was screened for CV dye decolorizing bacterial strains by inoculating 10 ml of wastewater into flask containing 100 ml of MSM broth. The flasks were incubated at 35°C under shaking conditions (120 rpm). After 48 hr of incubation period‚ 1ml of the culture broth was appropriately diluted and plated on MSM-CV dye amended agar plates. The morphologically distinct bacterial
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DIFFERENT TYPES OF AGAR Mac Conkey‘s Agar plate MacConkey (also McConkey) agar is a culture medium designed to grow Gram-negative bacteria and stain them for lactose fermentation. It contains bile salts (to inhibit most Grampositive bacteria‚ except Enterococcus and some species of Staphylococcus)‚ crystal violet dye (which also inhibits certain Gram-positive bacteria)‚ neutral red dye (which stains microbes fermenting lactose)‚ lactose and peptone. QUALITY CONTROL Results after 24 hrs at
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