MICROBIOLOGY WITH DISEASE BY TAXONOMY
5th Edition
ISBN: 9781323745229
Author: BAUMAN
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 11CT
Would you expect Gram-negative bacteria or Gram-positive bacteria to be more susceptible to antimicrobial chemicals that act against cell walls? Explain your answer, which you should base solely on the nature of the cells’ walls (see Figure 3.15).
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Chapter 9 Solutions
MICROBIOLOGY WITH DISEASE BY TAXONOMY
Ch. 9 - In practical terms in everyday use, which of the...Ch. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MCCh. 9 - The endospores or which organism can be used as a...Ch. 9 - A company that manufactures an antimicrobial...Ch. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MC
Ch. 9 - Prob. 11MCCh. 9 - Which of the following adjectives best describes a...Ch. 9 - Biosafety Level 3 includes ________. a. double...Ch. 9 - Prob. 14MCCh. 9 - Prob. 15MCCh. 9 - Prob. 16MCCh. 9 - Prob. 17MCCh. 9 - Prob. 18MCCh. 9 - Prob. 19MCCh. 9 - Prob. 20MCCh. 9 - Prob. 1SACh. 9 - Compare and contrast four tests that have been...Ch. 9 - Prob. 3SACh. 9 - Prob. 4SACh. 9 - Prob. 5SACh. 9 - Describe five physical methods of microbial...Ch. 9 - Prob. 7SACh. 9 - Prob. 8SACh. 9 - Prob. 9SACh. 9 - Compare and contrast the action of alcohols,...Ch. 9 - Prob. 11SACh. 9 - Why are alcohols more effective in a 70% solution...Ch. 9 - Contrast the structures and actions of soaps and...Ch. 9 - What are some advantages and disadvantages of...Ch. 9 - Prob. 15SACh. 9 - Calculate the decimal reduction time (D) for the...Ch. 9 - Prob. 2VICh. 9 - Prob. 1CTCh. 9 - Is desiccation the only antimicrobial effect...Ch. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Over 1000 people developed severe diarrhea, and at...Ch. 9 - An over-the-counter medicated foot powder contains...Ch. 9 - Prob. 7CTCh. 9 - Prob. 8CTCh. 9 - Explain why quaternary ammonium compounds are not...Ch. 9 - Prob. 10CTCh. 9 - Would you expect Gram-negative bacteria or...Ch. 9 - Where should you place a sterilization indicator...Ch. 9 - Why is liquid water necessary for microbial...Ch. 9 - Prob. 14CTCh. 9 - During the fall 2001 bioterrorist attack in which...Ch. 9 - Prob. 16CTCh. 9 - Prob. 17CTCh. 9 - Prob. 1CMCh. 9 - Why does milk eventually go bad despite being...Ch. 9 - Why are BSL-4 suits pressurized? Why not just wear...Ch. 9 - Prob. 3TMWCh. 9 - Prob. 4TMWCh. 9 - Prob. 1EDCS
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- Which of the following is NOT a property of an antimicrobial agent? a. Must have a known concentration over a period of time required to eliminate a pathogen b. all choices are correct c. must be selectively toxic d. Must have a favorable chemotherapeutic indexarrow_forwardCould an organism that is susceptible to an antimicrobial agent in laboratory testing fail to respond to it when that drug is used to treat the patient? Explain.arrow_forwardSome antibiotics show no zone of inhibition against the microbe. How is this possible? Explain how the microbe is able to combat against the antibiotic with proper reasoning.arrow_forward
- In which growth phase are microorganisms most sensitive to antimicrobial agents? Why?arrow_forwardScientists have cultured bacteria isolated from within frozen mammoths, which are thousands of years old. Why would it not be surprising if these microbes were to show some resistance to modern antimicrobials that didn’t exist when the mammoths died?arrow_forwardDrying is an effective antimicrobial strategy because:(a) It oxidizes cellular macromolecules(b) It limits the amount of water available to microbes(c) It increases susceptibility to UV irradiation(d) It triggers the thermal death pointarrow_forward
- Explain what type of antimicrobial hand gels-alcohol or triclosan-you would recommend people use in their daily lives.arrow_forwardWhich ONE of the following best describes the abbreviation ‘MIC’? Select one: A. The lowest concentration at which no microbial growth is detected B. The lowest concentration that indicates whether an antibiotic would be effective or not C. The lowest concentration which is not toxic to the host D. The lowest concentration which is least effective against the organism E. The lowest concentration which kills the organismarrow_forwardDefine the terms antiseptic and disinfectant. using one named example of each describe their modes of action. Using named examples describe 3 modes of action of antibiotics. describe three ways in which bacteria may develop resistance to antibiotics.arrow_forward
- Imagine a microbiologist performed a series of Gram stains but forgot to perform the destain step during the stains. Which type(s) of erroneous results would the scientist observe? Cells that are actually gram-negative would appear gram-positive Cells that are actually gram-positive would appear gram-negative Both gram-negative and gram-positive cells would appear to be the oppositearrow_forwardThere are various environmental factors that can influence microbial growth and reactions. These factors play a role which will determine if a microbe can function in a given environment. What are 2 environmental factors believed to be the most important out of the others ?arrow_forwardExplain why a population of microbes does not die instantaneouslywhen exposed to an antimicrobial agent.arrow_forward
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