EBK MICROBIOLOGY:W/DISEASES BY BODY...-
5th Edition
ISBN: 9780134608242
Author: BAUMAN
Publisher: PEARSON
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Chapter 9, Problem 10MC
Summary Introduction
Introduction:
Sterilization by physical method for removing or controlling microbes include, heat, filtration, osmotic pressure, desiccation, and radiation. Ionizing radiation and non-ionizing radiation are the two types of radiation that are employed in the eradication of microbes.
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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 index
Which one of the following is the most resistant microorganism for sterilization: Select one:
a.
Lipid enveloped viruses
b.
Gram negative bacteria
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Gram positive bacteria
d.
Mycobacterium
The Kirby -Bauer antimicrobial sensitivity testing method relies on:
A. The inhibition of one antimicrobial by another
B. The diffusion of antimicrobials in paper discs
C. Serial dilutions of antimicrobials in test tubes
D. A gradient of an antimicrobial on a paper strip
Chapter 9 Solutions
EBK MICROBIOLOGY:W/DISEASES BY BODY...-
Ch. 9 - Why does milk eventually go bad despite being...Ch. 9 - Prob. 1EDCSCh. 9 - Why are BSL-4 suits pressurized? Why not just wear...Ch. 9 - Prob. 3TMWCh. 9 - Prob. 4TMWCh. 9 - Prob. 1MCCh. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MC
Ch. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - The presarva1icn of beef jerky from microbial...Ch. 9 - Prob. 10MCCh. 9 - Which of the following substances would most...Ch. 9 - Which of the following adjectives best describes a...Ch. 9 - Prob. 13MCCh. 9 - Prob. 14MCCh. 9 - Prob. 15MCCh. 9 - Prob. 16MCCh. 9 - Which of the following disinfectants acts against...Ch. 9 - Which of the following disinfectants contains...Ch. 9 - Prob. 19MCCh. 9 - Prob. 20MCCh. 9 - Describe three types of microbes that are...Ch. 9 - Compare and contrast four tests that have been...Ch. 9 - Prob. 3SACh. 9 - Why do warm disinfectant chemicals generally work...Ch. 9 - Why are Gram-negative bacteria more susceptible to...Ch. 9 - Describe five physical methods of microbial...Ch. 9 - Prob. 7SACh. 9 - Prob. 8SACh. 9 - Compare and contrast desiccation and...Ch. 9 - Prob. 10SACh. 9 - Prob. 11SACh. 9 - Prob. 12SACh. 9 - Prob. 13SACh. 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 - Prob. 2CTCh. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Over 1000 people developed severe diarrhea, and at...Ch. 9 - Prob. 6CTCh. 9 - Prob. 7CTCh. 9 - Prob. 8CTCh. 9 - Prob. 9CTCh. 9 - Prob. 10CTCh. 9 - Prob. 11CTCh. 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 - What common household antiseptic contains a heavy...Ch. 9 - What is the phenol coefficient of phenol when used...Ch. 9 - Prob. 1CM
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- Which of the following antimicrobial control methods would likely not beused in the clinical setting during daily care of clients and their physicalenvironment on a medicalsurgical floor?a. sterilization b. antisepsis. c. disinfection d. sanitizationarrow_forwardWhich one of the following methods of antimicrobial susceptibility testing requires a dilution series of the antibiotic and can provide a minimum inhibitory concentration? Select one: a. Disk diffusion method b. Broth microdilution method c. Agar macrodilution method d. Gradient diffusion methodarrow_forwardDifferentiate the following sterilization techniques: a. Autoclave b. Dry heat c. Sterile filtrationarrow_forward
- Which of the following methods is most sensitive for identifyingdifferent strains of a microbe?a. microscopic examination b. hemolysis on blood agar c. DNA analysis d. agglutination testarrow_forwardChoose the combination of answers that most accurately completes the statement. Detergents are a. high-level germicides c. excellent antiseptics b. low-level germicides d. used in disinfecting surgical instruments followingarrow_forwardThe following methods used for sterilizing an antibiotic solution. i. Dry heat sterilization ii. Microfiltration iii. Autoclaving iv. Desiccation Select one: O a. i and ii O b. i and iii O c. ii and iv O d. ii onlyarrow_forward
- A relatively large zone of inhibition surrounding an antimicrobial disk on a Kirby-Bauer test plate would most likely be interpreted as: a. sensitive reaction b. intermediate reaction c. resistant reactionarrow_forwardA factor in the zone of inhibition size on the Kirby-Bauer plate is: a. amount of medium placed on the plate b. rate of diffusion of the drug used c. stage of growth of the microbe placed on the plate d. all of thesearrow_forwardWhich type(s) of medium would be used in each scenario?a. isolating the growth of Streptococcus pyogenes from a patient’s throat swabb. isolating a pathogen from a patient’s clean-catch urine samplec. isolating enteric bacteria such as Escherichia coli from a sample oforganically grown spinach d. maintaining a patient’s nasal swab specimen for further analysis andidentifi cation of possible respiratory syncytial virus (RSV) infectionarrow_forward
- A glass flask is rinsed and autoclaved after use. It was then filled with sterile media in a sterile environment and covered. A few days, microbial growth appears in the flask. Assume the media and sterile environment is guaranteed to be sterile. What most likely caused the growth in the flask? a. The flask has to be rinsed with bleach before autoclaving b. A portion of the flask was not exposed to the steam c. Autoclaves only sanitize equipment, so you cannot expect the flask to be sterile d. Autoclaving inhibits growth, but does not kill microbesarrow_forwardChoose one specific way from each of the two methods of inhibiting the growth of microbes below. Describe the method, explain the mechanism of action of killing the microorganisms and give practical applications of your chosen ways. 1. Physical Methods - Heat, cold, dessication, radiation, ultrasonic waves, filtration, gaseous atmosphere 2. Chemical Methods- disinfectants, antisepticsarrow_forwardBlood agar contains intact sheep red blood cells which are used to determine if a microbe has the ability to lyse these cells. This agar is properly termed A. a selective differential medium B. a complex medium C. a differential medium and a complex medium D. a selective mediumarrow_forward
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