Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Question
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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A factor in the zone of inhibition size on the Kirby-Bauer plate is:
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b. rate of diffusion of the drug used
c. stage of growth of the microbe placed on the plate
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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
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d. competitive inhibitor
Which of the following compounds represents a peptidoglycan specific antibiotic ?
A. tetracycline
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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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- Amoxicillin is a commonly used drug to fight bacteria. The pharmacologic class of this drug is: A. Amino-penicillin-beta-lactamase inhibitors B. Antibioticsarrow_forwardTechnically speaking, true antibiotics are drugs… A. Produced naturally by microbes B. Taken orally, not injected. C. Used to treat any microbial infection D. Used to treat any bacterial disease.arrow_forwardChoose the combination of answers that most accurately completes the statement.A compound synthesized by bacteria or fungi that destroys or inhibits the growth of other microbes is a/an a. synthetic drug c. antimicrobial drug b. antibiotic d. competitive inhibitorarrow_forward
- Which of the following statements concerning drug delivery system is INCORRECT?* A.Drugs with good aqueous solubility are good for controlled release formulation. B.The delay-released form is also called extended release form. C.Absorption rate is higher in compressed tablets than that in capsules. D.Drug core with polymer membrane coating belongs to diffusion sustained system. E.Disintegration and dissolution can occur at the same time.arrow_forwardChemical 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_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
- Choose the combination of answers that most accurately completes the statement.Microbial resistance to drugs is acquired through a. conjugation c. transduction b. transformation d. all of thesearrow_forwardA narrow spectrum antibiotic against Gram –‘s might target the ____________ whereas narrow spectrum drugs against Gram +’s might target the ______________. Select one: a. Cell Wall/Cell Membrane b. Cell Wall/Protein Synthesis c. Cell Membrane/Protein Synthesis d. None of the Above e. Cell Membrane/Cell Wallarrow_forward____________is the iodine antiseptic of choice for wound treatment.a. 8% tincture b. 5% aqueous c. 5% Iodophor d. 7.5% potassium iodide solutionarrow_forward
- Match 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_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_forwardChoose the combination of answers that most accurately completes the statement............. is the iodine antiseptic of choice for wound treatment. a. Eight percent tincture c. Iodophor b. Five percent aqueous d. Potassium iodide solutionarrow_forward
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USMLE-Rx Antimicrobial Therapy; Author: USMLE-Rx;https://www.youtube.com/watch?v=Pka1Ynlrqtw;License: Standard Youtube License