Microbiology with Diseases by Taxonomy - With Access
5th Edition
ISBN: 9780134578019
Author: BAUMAN
Publisher: PEARSON
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Chapter 9, Problem 5MC
Summary Introduction
Introduction:
Antimicrobial agents are the substances that are used for the removal of microorganisms. These antimicrobial agents will either retard the growth of microbes or will kill microbes permanently. As the name suggests, it works against the microbes.
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Which of the following is not a property of an antimicrobialagent?(a) Must have a favorable chemotherapeutic index(b) Must be selectively toxic(c) Must be effective against viral diseases(d) Must have a known concentration over a period oftime required to eliminate a pathogen(e) b and c
Which 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 organism
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
Microbiology with Diseases by Taxonomy - With Access
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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- Could 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_forwardIdentify the single most correct choice: () a) lodine can inactivate microbial cellular proteins. ( b) Alcohols may dissolve lipids and hence possess antimicrobial activities. c) Moist heat may result in protein denaturation and hence possess antimicrobial activities. 7 d) a and c e) b and c f) a, b and carrow_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
- Choose the combination of answers that most accurately completes the statement. An antimicrobial drug with a ___________ therapeutic index is a better choice than one with a ___________ therapeutic index. a. low, high b. high, lowarrow_forward1. a. Disk A b. Disk B c. Disk C d. Disk D 2. a. Strip A with MIC at 0.25 μg/mL b. Strip B with MIC at 0.064 μg/mL c. Strip C with MIC at 0.075 μg/mL d. All of the strips show equal antimicrobial efficacyarrow_forwardChoose the combination of answers that most accurately completes the statement. Which statement is not an aim in the use of drugs in antimicrobial chemotherapy? The drug should a. have selective toxicity b. be active even in high dilutions c. be broken down and excreted rapidly d. be microbicidalarrow_forward
- Make a conceptual framework based on this concept (Antimicrobial Resistance).arrow_forwardWhat is an experiment used to determine an antimicrobial agent is acting as a cidal or static agent.arrow_forwardA research scientist is developing a new antimicrobial drug for a pharmaceutical company. Discuss at least 4 attibutes that this drug should posses in order to be an ideal antimicrobial drug.arrow_forward
- the following are the steps, listed in random order, for utilizing koch's postulates. what should be the second step out of the four listed? a. a microorganism is found to be present in every case of a disease. b. the same microbe discovered previously is isolated from the purposely infected host c. the pathogen is isolated and grown in pure culture d. the same disease results after isolated organism is inoculated into healthy hostarrow_forwardMany people use antimicrobial soap to kill bacteria on their hands. However, overuse may increase the risk of infection. How could this occur?arrow_forwardGive a short comparison between alcohols and aldehydes as chemical antimicrobial agents.arrow_forward
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