Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 12, Problem 9MCQ
Summary Introduction
Introduction:
The technique used to measure the “ability of an antimicrobial agent” to inhibit the microbial growth in vitro is termed as antimicrobial susceptibility test. This ability can be determined either by dilution methods or diffusion method.
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The MIC is the of a drug that is required to inhibit growthof a microbe.a. largest concentration
b. standard dose
c. smallest concentration
d. lowest dilution
A 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 these
The MIC is the________________________________________ of a drug that is required to inhibit growth of a microbe.a. largest concentration c. smallest concentrationb. standard dose d. lowest dilution
Chapter 12 Solutions
Microbiology: A Systems Approach
Ch. 12.1 - State the main goal of antimicrobial treatment.Ch. 12.1 - Identify sources of the most commonly used...Ch. 12.1 - Summarize two methods for testing antimicrobial...Ch. 12.1 - Prob. 4AYPCh. 12.2 - Prob. 5AYPCh. 12.2 - Describe the five major targets of antimicrobial...Ch. 12.2 - Identify which categories of drugs are most...Ch. 12.3 - Prob. 8AYPCh. 12.3 - Trace the development of penicillin...Ch. 12.3 - Prob. 10AYP
Ch. 12.3 - Prob. 11AYPCh. 12.3 - Prob. 12AYPCh. 12.3 - Prob. 13AYPCh. 12.3 - Identify the cellular target of quinolones, and...Ch. 12.3 - Prob. 15AYPCh. 12.3 - Prob. 16AYPCh. 12.3 - Prob. 17AYPCh. 12.3 - Prob. 18AYPCh. 12.3 - Describe two major modes of action of antiviral...Ch. 12.4 - Prob. 20AYPCh. 12.4 - Prob. 21AYPCh. 12.4 - Discuss at least three novel antimicrobial...Ch. 12.5 - Distinguish between drug toxicity and allergic...Ch. 12.5 - Prob. 24AYPCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Microbial resistance to drugs is acquired through...Ch. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Which of the following modes of action would be...Ch. 12 - Prob. 9MCQCh. 12 - Prob. 10MCQCh. 12 - Prob. 11TFCh. 12 - Prob. 12TFCh. 12 - Biofilms are difficult to treat and do not always...Ch. 12 - Prob. 14TFCh. 12 - Prob. 15TFCh. 12 - Construct a paragraph describing the...Ch. 12 - Prob. 2CTQCh. 12 - Antibiotic-resistance genes, as well as other...Ch. 12 - Prob. 4CTQCh. 12 - What is the significance of the bottom row in...Ch. 12 - Figure 12.5. Where could penicillinase affect each...Ch. 12 - From chapter 6, process figure 6.14a. Describe as...Ch. 12 - Prob. 1CM
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- A compound synthesized by bacteria or fungi that destroys or inhibitsthe growth of other microbes is a(n)a. synthetic drug b. antibiotic c. antimicrobial drug d. competitive inhibitorarrow_forwardThe culture medium that contains penicillin is a type of ________media. A. Complex B. Reducing C. Differential D. Selective E. Chemically definedarrow_forwardWhich of the following is not a factor that should be considered when selecting a antimicrobial drug? A. The nature of the microbe causing the infection B. The overall medical condition of the patient C. The origin of the drug D. The degree of susceptibility of the microbe to that drugarrow_forward
- Chemical used to kill microorganisms on inanimate objects is called Select one: O a. Disinfectant b. Sanitizing O c. Therapeutic drug O d. Antibiotics e. Antisepticarrow_forwardMatch the following drug targets with the type of antibiotic that uses them (answers may be used more than once or not at all). a. Cell wall b.Cell membrane c. Protein synthesis (Transcription/Translation) d. Metabolic Pathway e. Nucleic Acid synthesis Chloramphenicol Clindamycin Erythromycin Doxycycline Sulfonamides Answer these multiple-choice questions as well. Please give just the answer and no explanation. 1. Which is not true of virus capsids?a. They surround and protect viral nucleic acidb. Always icosahedral in shapec. Remain outside of host bacterial cells while the nucleic acid is injected into the bacterial celld. Enters host animal cells together with the nucleic acid e. Made up of protein subunits called capsomeres 2. All viruses have: a. DNA b. RNAc. Envelopesd. Glycoprotein spikes e. Host specificity 3. Use the following to select the sequence of events during replication of DNA viruses in animal cells:1 = replication of viral nucleic acid2 = adsorption3…arrow_forwardE-strip testing can be used to determine a drug MIC against an organism. Which ONE of the following is correct? Select one: A. The zone of inhibition is inversely proportional to the activity of the drug B. The E-strip result guides to the maximum drug concentration that can be used to clear an infection C. The E-strip is impregnated with a fixed concentration of drug D. The E-strip is used broadly clinically to determine if an organism is resistant to a drug E. The MIC is read where bacterial growth touches the E-striparrow_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_forwardA scientist develops a new medication that is a protein compound and must be administered by injection. Which of the following would be the most effective and safest means of preparing a nearly sterile solution of the new medication? Select one: a. ultraviolet irradiation b. autoclaving c. filtration d. Lyophilization e dilution with alcoholarrow_forwardIn general, protein detection methods are based on: a. fluorescence b. column affinity c. enzyme-substrate reaction d. antigen-antibody reactionarrow_forward
- Choose 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 instrumentsarrow_forwardWhich of the following activities would contravene the Policy on Manufacturing and Compounding Products in Canada? a. Reconstitution of a sterile powder injection b. Preparation of a sterile admixture using commercially available sterile components c. Preparation of a sterile dosage form not commercially available d. Preparation of a commercial sterile product to reduce drug costarrow_forwardMass spectrometry identifies microbes via a. fluorescence of antibodies. b. precipitation reactions. c. protein fingerprints. d. fluorescence of antigens.arrow_forward
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USMLE-Rx Antimicrobial Therapy; Author: USMLE-Rx;https://www.youtube.com/watch?v=Pka1Ynlrqtw;License: Standard Youtube License