Bacterial Contamination April 15‚ 2013 Bacteria Contamination The definition of bacterial contamination is food contamination refers to foods that are spoiled or tainted because they either contain microorganisms‚ such as bacteria or parasites‚ or toxic substances that make them unfit for consumption This is very serious and people should take more precaution‚ food contamination is a serious because it results in foodborne diseases that each year affect an estimated seventy-six million
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Methodology By using aseptic‚ a little cultured bacteria was inoculated on the TSA agar. A quadric streak was making. Inoculation loop was heated and keep it cold for a while before the next quadratic streak. Six agar plates were observed for 24 hour at temperature of 30ºC. Choose one from the dense colony and make a sub-culture on the new agar plate. The step was repeated to get a single colony‚ which is pure colony. a) Sequestration of bacteria from fish organs Methodology Dissecting set
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Bad Blood: The Tuskegee Syphilis Experiment Between the years of 1932 and 1972‚ the United States Public Health Service conducted a study of untreated syphilis on black men in Macon County‚ Alabama. Although these men were not purposely infected with the disease‚ the USPH service did recruit physicians‚ white and black‚ to NOT treat those men already diagnosed. It was felt that syphilis in a white male created more neurological deficits whereas in a black male‚ more cardiovascular‚ these of course
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ANALYSIS OF THE BOOK BAD BLOOD: THE TUSKEGEE SYPHILIS EXPERIMENT Dr. Bradley Moody PUAD 6010 By 22 November 2004 Introduction The book BAD BLOOD: THE TUSKEGEE SYPHILIS EXPERIMENT by James H. Jones was a very powerful compilation of years of astounding research‚ numerous interviews‚ and some very interesting positions on the ethical and moral issues associated with the study of human beings under the Public Health Service (PHS). "The Tuskegee study had nothing to do with treatment
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Title: Physical and Chemical Properties Purpose: The purpose of this experiment is to investigate the physical and chemical properties of pure chemical substances by subjecting them to various environmental extremes. Procedure: Filled each test tube with substances provided and subjected them to various conditions. These conditions included‚ heat‚ cold water‚ hot water‚ acid and basic additions and tested on litmus paper. The reactions were observed and documented at each step. Data tables:
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ANALYSIS OF BACTERIA GROWTH Abstract Bacteria can be found everywhere on the earth. Bacteria are single-celled organisms that lack a nucleus‚ mitochondria‚ and chloroplasts and are surrounded by a cell wall containing a peptidoglycan layer. They are defined by their small size and wide range of shapes. In this experiment we separated organisms in a mixed culture to study the colony morphology and physical characteristics and determine which organism was present in higher numbers‚ as determined
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Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria Table of Contents Page 1: Title Page Page 2: Table of Contents Page 3: Introduction Page 4 – 6: Research Page 7 – 10: Lab Report Page 11: Conclusion Page 12: References Bacteria and Toothpaste: The Effect of Toothpaste on Bacteria My project is on Toothpaste and Bacteria‚ and how bacteria is effected by toothpaste. I found this project very interesting because it was an opportunity
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MANIPULATION OF BACTERIA INTRODUCTION: In this experiment that we performed‚ there were many methods that were used to help us manipulate and identify the bacteria E.coli on a MacConkey agar plate. The first part of the experiment involved the methods of manipulating‚ identifying and counting the bacteria and the second part was to find out whether the bacteria E.coli was the only type found in the given area by gram staining. E.coli was the chosen bacteria for this type of experiment. It is a gram
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a universal method of identifying bacteria allows for all scientists from any part of the world to identify the same species in an identical manner allowing for a precise of classification. Bacteria are distributed throughout the world in almost every conceivable habit. Bacteria are unicellular microorganisms‚ with variable shapes and nutritional needs. They lack a distinct nucleus and occur singly or in chains or clusters and form distinct colonies. Bacteria are classified on the basis of many
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how much hydrogen is attached to adjacent atoms (Manrique‚ 2012). Objective To determine the structure of organic compounds (Manrique‚ 2012). Hypothesis By analyzing the mass spec‚ IR and NMR graphs‚ the structure of a molecule can be found. Experiment Materials Lab 2 Handout Procedure Analyze each graph and deduce the structural formula of each molecule. Lab Data Analysis For the molecule with
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