Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Chapter 11.3, Problem 17ELO
Summary Introduction
Introduction:
Filtration is an effective sterilization and disinfection techni0que for air and liquids. Fluid is generally strained through a filter with pore large enough to pass the fluid but block microbes.
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Chapter 11 Solutions
Foundations in Microbiology
Ch. 11.1 - Prob. 1ELOCh. 11.1 - Prob. 2ELOCh. 11.1 - 3. Define and differentiate among the major terms...Ch. 11.1 - 4. Characterize the parameters of microbial death,...Ch. 11.1 - 5. Summarize what factors influence the...Ch. 11.1 - 6. Identify the targets of antimicrobial control...Ch. 11.1 - Prob. 1CYPCh. 11.1 - Prob. 2CYPCh. 11.1 - 3. Contrast various microbes and rate their...Ch. 11.1 - 4. Explain how the types and numbers of...
Ch. 11.1 - Prob. 5CYPCh. 11.1 - Prob. 6CYPCh. 11.1 - Prob. 7CYPCh. 11.1 - Prob. 8CYPCh. 11.2 - Prob. 7ELOCh. 11.2 - Prob. 8ELOCh. 11.2 - Prob. 9ELOCh. 11.2 - 10. Differentiate between thermal death point and...Ch. 11.2 - 11. Describe several moist heat methods and their...Ch. 11.2 - Prob. 12ELOCh. 11.2 - Prob. 13ELOCh. 11.2 - 9. What happens to microbes that encounter...Ch. 11.2 - 10. Summarize the nature, mode of action, and...Ch. 11.2 - 11. Explain the concepts of TDT and TDP, using...Ch. 11.2 - Prob. 12CYPCh. 11.2 - 13. How can the temperature of steam be raised...Ch. 11.2 - Prob. 14CYPCh. 11.2 - Prob. 15CYPCh. 11.2 - 16. Explain why desiccation and cold are not...Ch. 11.3 - Prob. 14ELOCh. 11.3 - 15. Differentiate between ionizing and nonionizing...Ch. 11.3 - Prob. 16ELOCh. 11.3 - Prob. 17ELOCh. 11.3 - Prob. 17CYPCh. 11.3 - Prob. 18CYPCh. 11.3 - 19. What are some advantages and disadvantages of...Ch. 11.3 - Prob. 20CYPCh. 11.3 - Prob. 21CYPCh. 11.4 - Prob. 18ELOCh. 11.4 - 19. Explain the desirable features of...Ch. 11.4 - 20. Describe the types of halogens, their modes of...Ch. 11.4 - 21. Identify the characteristics of phenolic...Ch. 11.4 - 22. Describe the characteristics of oxidizing...Ch. 11.4 - Prob. 23ELOCh. 11.4 - 24. Explain how detergents, soaps, and heavy...Ch. 11.4 - 22. Describe situations that require high-level...Ch. 11.4 - 23. What is the difference between a tincture and...Ch. 11.4 - 24. Define sterilant, and name the principal...Ch. 11.4 - 25. Summarize the chief forms and uses of chlorine...Ch. 11.4 - 26. What are the superior characteristics of...Ch. 11.4 - 27. What are the modes of action of alcohols and...Ch. 11.4 - 28. Why is hydrogen peroxide solution so effective...Ch. 11.4 - 29. Give the uses and disadvantages of the heavy...Ch. 11.4 - 30. What does it mean to say that a chemical has...Ch. 11.L1 - Prob. 1MCQCh. 11.L1 - Prob. 2MCQCh. 11.L1 - Prob. 3MCQCh. 11.L1 - Prob. 4MCQCh. 11.L1 - Prob. 5MCQCh. 11.L1 - Prob. 6MCQCh. 11.L1 - 7. The primary action of ______ heat is to ______....Ch. 11.L1 - Prob. 8MCQCh. 11.L1 - 9. Microbe(s) that is/are the target(s) of...Ch. 11.L1 - 10. Ionizing radiation like _________ removes...Ch. 11.L1 - Prob. 11MCQCh. 11.L1 - Prob. 12MCQCh. 11.L1 - Prob. 13MCQCh. 11.L1 - 14. A chemical with sporicidal properties is a....Ch. 11.L1 - 15. Silver sulfadiazine is used a. in antisepsis...Ch. 11.L1 - Prob. 16MCQCh. 11.L1 - Prob. 17MCQCh. 11.L1 - 1. How would one best describe the state of being...Ch. 11.L1 - Prob. 2CSRCh. 11.L1 - Prob. 3CSRCh. 11.L1 - Prob. 1WCCh. 11.L1 - Prob. 2WCCh. 11.L1 - Prob. 3WCCh. 11.L1 - 4. Think of three situations in which the same...Ch. 11.L1 - 5. Explain what features of endospores make them...Ch. 11.L1 - 6. Explain some of the problems involved in...Ch. 11.L1 - 7. The shelf life and keeping qualities of fruit...Ch. 11.L2 - 1. For each item on the following list, propose a...Ch. 11.L2 - Prob. 2CTCh. 11.L2 - 3. It may seem contradictory that lyophilization...Ch. 11.L2 - 4. A supermarket/drugstore assignment: Look at the...Ch. 11.L2 - 5. Devise an experiment that will differentiate...Ch. 11.L2 - 6. There is quite a bit of concern that chlorine...Ch. 11.L2 - 7. Was the source patient in the case study most...Ch. 11.L2 - 8. Explain why surfactant chemicals are more...Ch. 11.L2 - From chapter 2, figure 2.20. Study this...Ch. 11.L2 - 2. Explain what is happening with this graph that...
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- a) Define 'Disinfection' and 'Sterilization' OR differentiate between them. b) Enlist the different methods of 'Disinfection' which method would you recommend for 'Municipal Water Supply' and WHY? Depending on the availability of 'Source of Water which 'Source' is more important than the other for disinfection and WHY? Give reason. c) of them is stronger than the other and by what percentage? Define or differentiate between “Free Available Chlorine" and “Combined Available Chlorine". Write their Chemical Formulae and mention which one d) Define “Break Point Chlorination". With the help of a neat Figure' show the "Break Point" and also show "Combined Available Chlorine", "Free Available Chlorine" and "Total Available Chlorine". Mention the “Dosage" in order to obtain a “Free Available Chlorine Residual" of about 0.5 mg/l or above. e) Define the term “Chlorine Demand" of water. What are the "Factors" OR enlist the "Factors" that show the "Effectiveness of Chlorine".arrow_forwardDescribe situations that require high-level disinfection and thosefor which medium- or low-level disinfection is adequate.arrow_forward1. Describe and give the principle of each equipment used for sterilization in microbiology. (refer to equipment drawn only)arrow_forward
- 9. Which is statement below is the correct definition of the Sterility Assurance Limit (SAL). Select ONE answer. O The Sterility Assurance Limit (SAL) is a numerical value that predicts the probability that a microorganism has survived a pasturization process. O The Sterility Assurance Limit (SAL) is a numerical value that confirms that a microorganism has survived a sterilisation process. O The Sterility Assurance Limit (SAL) is a numerical value that predicts the probability thaț a microorganism has survived a sterilisation process. O The Sterility Assurance Limit (SAL) is a numerical value that confirms that a microorganism has survived a pasturization process. O The Sterility Assurance Limit (SAL) is a numerical value that predicts the probability that a microorganism has been erradicated during a sterilisation processarrow_forward26. Describe the steps and techniques from sampling to identification of a microorganism.arrow_forwardDescribe the concept behind sterilization by fi ltration, including examples of applications.arrow_forward
- 9. Is the eosin methylene blue agar (EMB) a complex or defined medium? Explain based on its composition. Is MSA a A) differential, B) selective, or C) both differential and selective media? Explain based on what kind of microorganisms it allows to grow.arrow_forward2. Which of the following statements is true regarding steam sterilization? a. It is a universal technique, applicable to a product of any nature. b. At the same temperature, usually more effective than dry heat. c. Steam sterilization is amenable to a continuous workflow. d. The purpose of the steam is to keep the product from drying out during sterilization. Steam cannot be combined any other sterilization technique. е.arrow_forward1. Give the principle involved in the operation of the following instruments and their specific purposes: a. Autoclave b. Hot air Sterilizer c. Inspissatorarrow_forward
- 3. Give specific examples of media which are sterilized by the following method: a. Boiling or heating only b. Autoclave using steam under pressure c. Inspissator d. Filtration or membrane filterarrow_forward5) True or False Biofilms protect bacteria from antibiotics due to reduced diffusion of the drug.arrow_forwardCh. 6: Water intoxication may be due to: O a) administration of too much hypotonic solution b) administration of too much hypertonic solution O c) administration of too much isotonic solution Od) encouraging your patient to consume fluidsarrow_forward
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