Chapter 19: Diseases of the Skin and Eyes; Wounds and Bites Question Type: Multiple Choice 1) The majority of organisms normal to the skin are: a) Gram-negative b) Gram-positive c) fungi d) viruses Answer: b Difficulty: Easy Learning Objective 1: LO 19.1 Review the anatomy of the skin and mucus membranes with regards to microbial defenses. Section Reference 1: Section 19.1 The Skin‚ Mucus Membranes‚ and Eyes 2) Which of the following is not considered resident microflora of the skin?
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the habitat in which the agent normally lives‚ grows‚ and multiplies. Reservoirs include humans‚ animals‚ and the environment. The reservoir may or may not be the source from which an agent is transferred to a host. For example‚ the reservoir of Clostridium botulinum is soil‚ but the source of most botulism infections is improperly canned food containing C. botulinum spores. Human reservoirs. Many common infectious diseases have human reservoirs. Diseases that are transmitted from person to person
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Serratia marcescens and Micrococcus luteus. There were ten bacteria species possibilities: Stahylococcus epidermidis‚ Bacillus subtilis‚ Escherichia coli‚ Serratia marcescens‚ Sarcina lutea‚ Pseudomonas fragi‚ Micrococcus luteus‚ Alcaligenes faecalis‚ Clostridium sporogenes‚ and Micrococcus roseus. There were several qualitative tests that could be conducted to determine the identity of the unknown species‚ for example‚ Gram staining‚ Fermentation‚ Catalase‚ Oxidase‚ Starch Hydrolysis‚ Litmus Milk‚ MOI
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Differential Staining Cynthia Alonzo‚ M.S. Version 42-0242-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information
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CU254 Aims Causes and Spread of Infection This unit is to enable the learner to understand the causes of infection and common illnesses that may result as a consequence. To understand the difference between both infection and colonisation and pathogenic and non pathogenic organisms‚ the areas of infection and the types caused by different organisms. In addition‚ the learner will understand the methods of transmission‚ the conditions needed for organisms to grow‚ the ways infection enter the
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Bauhinia Q1) Discuss the competitive forces in the dairy processing industry. Identify the other industry that Bauhinia has entered and highlight the key differences in the competitive forces between the two industries. Comment on their comparative attractiveness in Hong Kong. Five forces model a)Potential new entrants high barriers: laws on food safety customer loyalty to established brands of leading market players dairy products are mostly perishable‚ which requires high turnover‚reliable
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Nitrogen Fixation D. Decomposition E. Bioremediation F. Antibiotics G. Biotechnology and research H. Normal flora I. Pathogens (malaria parasite‚ E. coli‚ Salmonella‚ Clostridium) IV. The Origin of Microorganisms A. Spontaneous Generation revisited 1. Francesco Redi 2. Lazzaro Spallazani 3. Louis Pasteur 4. John Tyndall
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FOOD PRESERVATION 1.0 Definition Food preservation is the process of treating and handling food to stop or slow down spoilage (loss of quality‚ edibility or nutritional value) and thus allow for longer storage. Preservation usually involves preventing the growth of bacteria‚ yeasts‚ fungi‚ and other micro-organisms (although some methods work by introducing benign bacteria‚ or fungi to the food)‚ as well as retarding the oxidation of fats which cause rancidity. Food preservation can also include
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Study Guide Notes ¡V Test 1 CHAPTER 1 1. Linnaeus ¡V naming system Hooke ¡V cells in cork Van Leeuwenhoek ¡V animalcules (1st obs. of live microorganisms) Redi ¡V experiment to disprove spontaneous generation ¡V meat Needham ¡V experiment to prove spontaneous generation ¡V broth (vital force) Spallanzani ¡V heated broth did not develop microbial growth Virchow ¡V biogenesis (living can only arise from preexisting living) Pasteur ¡V air contained‚ but did not produce‚ microbes (broth‚ s-flasks);
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Choose one of the following foodborne illnesses to complete this assignment: * Salmonella * Staphylococcus * Clostridium perfringens * Norovirus (formerly Norwalk virus) * Hepatitis A * Giardia or amoeba parasites Write a 125- to 150-word response to each of the following questions: * What is the infectious agent (pathogen) that causes this infectious disease? For example‚ the name of the bacteria‚ virus‚ or parasite. Salmonella comes from bacteria called salmonella
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