Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 10, Problem 4Q
Summary Introduction
Introduction:
Antimicrobial strategy revolves around the necessary
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Most antiviral drugs:
a) damage the cell wall
b) are nucleoside analogs
c) are enzymes inhibitors
d) prevent viruses from entering cells
e) damage the plasma membrane
Why are encapsolated bacteria generally more pathogenic than un-capsolated strains.
a. Because capsule allows the organism to hide in the body of the host.
b. because the capsule causes the phagocyte to mutate c. because the capsule protects bacteria from host immune cells
d. because the capsule kills the phagocytes
e. because the capsule stimulates a potent immune response in the host.
Which mechanism of antibiotic resistance is most likely to result in "cross resistance" against multiple antibiotic drugs resulting in the development of "superbugs"?
a. Modification of drug target
b. Enzyme deactivation of drug
c. Efflux pumps
d. Blocking entry of drug into the cell
Chapter 10 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 10.1 - State the main goal of antimicrobial treatment.Ch. 10.1 - Identify the sources for the most commonly used...Ch. 10.1 - Describe two methods for testing antimicrobial...Ch. 10.1 - Prob. 4AYPCh. 10.1 - NCLEX PREP 1. An RN is caring for a 26-year-old...Ch. 10.2 - Explain the concept of selective toxicity.Ch. 10.2 - List the five major targets of antimicrobial...Ch. 10.2 - Prob. 7AYPCh. 10.2 - Distinguish between broad-spectrum and...Ch. 10.2 - Prob. 9AYP
Ch. 10.2 - Explain the mode of action of penicillinases and...Ch. 10.2 - Identify two antimicrobials that act by inhibiting...Ch. 10.2 - Prob. 12AYPCh. 10.2 - Identify one example of a fluoroquinolone.Ch. 10.2 - Describe the mode of action of drugs that target...Ch. 10.2 - Prob. 15AYPCh. 10.2 - Prob. 16AYPCh. 10.2 - Explain why antiprotozoal and antihelminthic drugs...Ch. 10.2 - List the three major targets of action of...Ch. 10.2 - Prob. 2NPCh. 10.3 - Discuss two main ways that microbes acquire...Ch. 10.3 - List five cellular or structural mechanisms that...Ch. 10.3 - Prob. 21AYPCh. 10.3 - Prob. 3NPCh. 10.3 - Prob. 1MMCh. 10.4 - Distinguish between drug toxicity and allergic...Ch. 10.4 - Prob. 23AYPCh. 10.4 - Prob. 4NPCh. 10.4 - Prob. 5NPCh. 10 - Microbial resistance to drugs is acquired through...Ch. 10 - Prob. 2QCh. 10 - Prob. 3QCh. 10 - Prob. 4QCh. 10 - Why does the penicillin group of antibiotics have...Ch. 10 - Prob. 6QCh. 10 - Prob. 7QCh. 10 - Conduct research to find out why drugs blocking...Ch. 10 - Prob. 9QCh. 10 - Prob. 10QCh. 10 - You take a sample from a growth-free portion of...Ch. 10 - Prob. 12QCh. 10 - Treating malarial infections is theoretically...Ch. 10 - Can you think of a situation in which it would be...Ch. 10 - Prob. 15QCh. 10 - Prob. 16QCh. 10 - Prob. 17QCh. 10 - Prob. 18QCh. 10 - An antimicrobial drug with a _______ therapeutic...Ch. 10 - Prob. 20QCh. 10 - Prob. 21QCh. 10 - Prob. 1VC
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- If a person contracted MRSA and no antibiotics are working on them, how would you go about finding a way to treat their infection? Describe, in detail, how you would devise a plan to save their life utilizing your knowledge of bacteria and viruses.arrow_forwardSubstances that are naturally produced by certain microorganisms that can either inhibit or destroy other microorganisms are called: a)semisynthetic drugs b) narrow-spectrum drugs c) antibiotics d) synthetic drugsarrow_forwardWhich of the following BEST describes an agent that is bacteriostatic? A) It suspends bacterial synthesis of Tranexamic Acid. B) It kills the bacteria by destroying its cell wall. C) It zaps the bacteria with static electricity. D) It suspends bacterial growth.arrow_forward
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- Doctors prescribe synergistic drug combinations to treatbacterial infections. The purpose of such treatment is to:(a) Change the bacteria with cell walls to L forms lackingcell walls(b) Reduce the treatment time of the disease(c) Prevent microorganisms from acquiring drug resis-tance(d) Reduce the toxic side effects of the antibiotics(e) Use lower doses of antibioticsarrow_forwardMany viruses enter host cells through receptor-mediated endocytosis, What is an advantage of this entry strategy? A. The virus directly enters the cytoplasm of the cell B The virus only enters its target host cell type. C. The virus is protected from recognition by white blood cells. D. The virus can directly inject its genome into the cell's nucleus.arrow_forwardUV light is able to damage bacterial cells by:a. preventing mitosis b. damaging DNA c. dissolving cell membranes d. coagulating cytoplasmarrow_forward
- What is the mechanism of action of the antimicrobial used to treat patients with Fungal infections * a. Inhibits ergosterol synthesis b. Inhibits glucan synthesis c. Inhibits protein synthesis d. Inhibits nucleic acid synthesisarrow_forwardWe have many antimicrobial drugs to treat bacterial infections, but very few for viruses. Why is it so difficult to treat viral infections? Hint: What would the targets for the drugs be?arrow_forwardMycobacterium tuberculosis is very difficult to stain because of the A) presence of ribosomes in the cytoplasm. B) location of the DNA within the cell. C) large amounts of a waxlike lipids present in its cell wall. D) lack of a cell wall.arrow_forward
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