Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 20, Problem 3MC
Which of the following is the target of ß-lactam antibiotics?
a) Peptidoglycan synthesis
b) DNA synthesis
c) RNA synthesis
d) Protein synthesis
e) Folic acid synthesis
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1) The slowest method in reducing the number of bacteria in a culture or the environment is: a) Sterilization b) Disinfection c) Antisepsis d) Sanitization e) Autolysis2) The molecule that helps insert the peptidoglycan monomers into the cell wall of the bacteria is: a) Ferredoxin b) Spherion c) Penicillin Binding Protein (PBP) d) Bactoprenol e) -Lactam Ring 3) A division in Eukaryotes that involves nuclear division without a cytokinesis will lead to the formation of: a) Baeocyte b) Mycellia c) Syncitium d) Myofibril e) all the above4) All the following are critical factors in determining the effectiveness of an antimicrobial agent except: a) Population size b) Species c) Location d) pH e) Temperature 5) The autoclave temperature must be raised up to _____ in order to effectively kill the bacterial spores: a) 121.1 oF b) 121.1 oC c) 121.1 oK d) 211 oF e) 112 oF
21) The use of Penicillin and Bacteriocins are examples of: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Metabolite inhibitors e) DNA inhibitors 22) Evaluating the effectiveness of a chemical or reagent is done through: a) Periodic transfer and refrigeration b) the Phenol Coefficient test c) Lyophilization d) Viral mediated lysis e) a and b23) Salmonella typhi and Staphylococcus aureus are two species used in: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Autoclave effectiveness evaluation e) Phenol Coefficient test24) Chemotherapeutics have ____ Toxicity: a) Broad spectrum b) General c) Differential d) Selective e) c & d 25) The gas that has been used recently used to decontaminate biological safety cabinets is: a) EtO b) Beta-propiolactone c) NO Gas d) N2O Gas e) Vapor-phase H2O2
Chapter 20 Solutions
Nester's Microbiology: A Human Perspective
Ch. 20 - Describe the difference between the terms...Ch. 20 -
2. Define therapeutic index and explain its...Ch. 20 -
3. Explain how penicillin-binding proteins (PBPs)...Ch. 20 - Name three classes of antimicrobial medications...Ch. 20 - Explain the roles of the first-line drugs versus...Ch. 20 -
6. Compare and contrast the method for...Ch. 20 - Name three targets that can be altered...Ch. 20 - What is MRSA? Why is it significant?Ch. 20 - Prob. 9SACh. 20 -
10. Explain the difference between the mechanism...
Ch. 20 - Which of the following targets would you expect to...Ch. 20 -
2. Penicillin has been modified to make...Ch. 20 -
3. Which of the following is the target of...Ch. 20 -
4. Which of the following statements is false?
a)...Ch. 20 - Prob. 5MCCh. 20 - Prob. 6MCCh. 20 - Prob. 7MCCh. 20 - Prob. 8MCCh. 20 - Prob. 9MCCh. 20 - Prob. 10MCCh. 20 - Prob. 1ACh. 20 - Prob. 2ACh. 20 - Prob. 1CTCh. 20 - Prob. 2CT
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