Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 9R
Compare the method of action of the following pairs:
- a. penicillin and echinocandin
- b. imidazole and polymyxin B
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Chapter 20 Solutions
Microbiology: An Introduction
Ch. 20 - DRAW IT Show where the following antibiotics work:...Ch. 20 - List and explain five criteria used to identify an...Ch. 20 - What similar problems are encountered with...Ch. 20 - Define drug resistance. How is it produced? What...Ch. 20 - List the advantages of using two chemotherapeutic...Ch. 20 - Why does a cell die from the following...Ch. 20 - How does each of the following inhibit...Ch. 20 - The OH is missing from carbon 39 in ddI. How does...Ch. 20 - Compare the method of action of the following...Ch. 20 - NAME IT This microorganism is not susceptible to...
Ch. 20 - Which of the following pairs is mismatched? a....Ch. 20 - Prob. 2MCQCh. 20 - Prob. 3MCQCh. 20 - An antimicrobial agent should meet all of the...Ch. 20 - The most selective antimicrobial activity would be...Ch. 20 - Prob. 6MCQCh. 20 - Which of the following will not affect eukaryotic...Ch. 20 - Cell membrane damage causes death because a. the...Ch. 20 - A drug that intercalates into DNA has the...Ch. 20 - Chloramphenicol binds to the 50S portion of a...Ch. 20 - Prob. 1ACh. 20 - Why is idoxuridine effective if host cells also...Ch. 20 - Some bacteria become resistant to tetracycline...Ch. 20 - The following data were obtained from a...Ch. 20 - Prob. 5ACh. 20 - The following results were obtained from a broth...Ch. 20 - Vancomycin-resistant Enterococcus faecalis was...Ch. 20 - Prob. 2CAECh. 20 - Prob. 3CAE
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- Which of these antibiotics would do the best job as a broad spectrum antibiotic?arrow_forwardWhat is the specific mode of action and the target organisms of each of the three antibiotics used in the exercise (isolation of E. coli bacteriophage)?a. Ampicillin:b. Polymyxin:c. Streptomycin:arrow_forwardIdentify the penicillin that has the narrowest spectrum among the following. a-Wycillin b-Pipracil c-Ticar d-Augmentinarrow_forward
- Many antibiotics used in modern medicine are compounds made by fungi that inhibit bacterial protein synthesis. Describe the specific effect of the following antimicrobial drugs: (i) Tetracycline (ii) Puromycin (iii) Alpha-Amanitinarrow_forwardObserve the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. a. Tetracycline b. Streptomycin c. Penicillin d. Norfloxacinarrow_forwardWhich of the following inhibitors are correctly grouped? (Hint: same target) O cyanide, amytal, rotenon O oligomycin, antimycin A, piericidin O amytal, antimycin A, oligomycin O carbon monoxide, azide, cyanidearrow_forward
- Many antibiotics used in modern medicine are compounds made by fungi that inhibit bacterial protein synthesis. Describe the specific effect of the following antimicrobial drugs: (i) Chloramphenicol (ii) Rifamycinarrow_forwardDefine the following terms: Bactericidal Bacteriostatic Antisepsisarrow_forwardWhich of the following compounds represents a peptidoglycan specific antibiotic ? A. tetracycline B. chloramphenicol C. penicillin D. aspirinarrow_forward
- Caffeine is used in bilirubin assays to: 1) Stop the diazo reaction 2) Accelerate indirect bilirubin reaction 3) Accelerate direct bilirubin reaction 4) Precipitate proteins 5) Reduce sodium nitrite no references, just homeworkarrow_forwardA. How many people a year die due to insecticide misuse and exposure? B. What does Bt stand for? C. What is the Bt delta endotoxin? D. What is the mode of action for this endotoxin and what is its target organism(s)?arrow_forwardThe antibiotic susceptibility testing results of Staphylococcus showed zones of inhibition (absence of growth on zones) around discs of Penicilin, Teracycline, chloramphenicol, this means that a) S. aueres is resistant to all these antibiotics. b) S. aueres is susceptible to all these antibiotics. c) susceptible to only a couple of them d) neither are the correct choicesarrow_forward
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