Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 19, Problem 1Q
Which of the following organisms is most problematic with respect to its resistance to antibiotics?
- a. Streptococcus pyogenes
- b. Haemophilus influenzae
- c. Mycobacterium tuberculosis
- d. Bordetella pertussis
Expert Solution & Answer
Summary Introduction
Introduction:
Microbes are the smallest living things that are not visible with naked eyes. These microbes are present everywhere. Antibiotics are the drugs that are used to treat infection caused by bacteria. Antibiotics majorly target the protein synthesis pathway because all organisms synthesize proteins through translation machinery.
Answer to Problem 1Q
Correct answer:
Mycobacterium tuberculosis is the most problematic microorganism with respect to its resistance to antibiotics. Therefore, option (c) is correct.
Option (c) is given as “Mycobacterium tuberculosis”.
Explanation of Solution
Justify reasons for the correct statement:
Mycobacterium tuberculosis is the microorganism that has many problems related to its resistance to antibiotics because it is rapidly emerging and changing its gene. It also has a waxy layer that makes the cell impermeable to any stain due to which they remain in the body. So, it is very difficult to develop new antibiotics to cure the diseases caused by Mycobacterium tuberculosis.
Hence, option (c) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “Streptococcus phyogenes”.
Streptococcus phyogenes will not have any problem with respect to its resistance to antibiotics because strain of these bacteria will remain same and does not have waxy layer. So, it will not create problems related to resistance to antibiotics. Hence, it is a wrong answer.
Option (b) is given as “Haemophilus influenza”.
Haemophilus influenza will not have any problem with respect to its resistance to antibiotics because strain of this bacteria will remain same and does not have a waxy layer. So, it will not create problems related to resistance to antibiotics. Hence, it is a wrong answer.
Option (d) is given as “Bordetella pertusis”.
Bordetella pertusis will not have any problem with respect to its resistance to antibiotics because strain of this bacteria will remain same and does not have waxy layer. So it will not create problems related to resistance to antibiotics. Hence, it is a wrong answer.
Hence, options (a), (b), and (d) are incorrect.
Conclusion
Mycobacterium tuberculosis is the microorganism that has a problem with respect to its resistance to antibiotics because it changes its genome again and again and has a waxy layer.
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Chapter 19 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 19.1 - Draw or describe the anatomical features of the...Ch. 19.1 - Prob. 2AYPCh. 19.2 - List the types of normal biota presently known to...Ch. 19.2 - Prob. 1MMCh. 19.3 - List the possible causative agents, modes of...Ch. 19.3 - Identify the most dangerous cause of pharyngitis...Ch. 19.3 - Prob. 6AYPCh. 19.3 - Prob. 1NPCh. 19.3 - Prob. 2NPCh. 19.3 - Prob. 3NP
Ch. 19.4 - Prob. 7AYPCh. 19.4 - Compare and contrast antigenic drift and antigenic...Ch. 19.4 - Prob. 9AYPCh. 19.5 - Prob. 10AYPCh. 19.5 - Prob. 11AYPCh. 19.5 - Prob. 12AYPCh. 19.5 - Prob. 2MMCh. 19.5 - Prob. 4NPCh. 19 - Which of the following organisms is most...Ch. 19 - Prob. 2QCh. 19 - It has recently been established that the lower...Ch. 19 - Which of these microbes has an unusual, waxy, wall...Ch. 19 - What cell structure of Streptococcus pneumoniae...Ch. 19 - Prob. 6QCh. 19 - The betahemolysis of blood agar observed with...Ch. 19 - Would you expect the microbiome in the lung to be...Ch. 19 - In some diseases and outbreaks of respiratory...Ch. 19 - Prob. 10QCh. 19 - Prob. 11QCh. 19 - Prob. 12QCh. 19 - Which of the following infections often has/have a...Ch. 19 - Outline how a progression from influenza infection...Ch. 19 - Prob. 15QCh. 19 - Prob. 16QCh. 19 - Prob. 17QCh. 19 - Conducting your own research, describe the total...Ch. 19 - Watchful waiting is the recommended response to...Ch. 19 - Prob. 20QCh. 19 - Prob. 21QCh. 19 - From chapter 2, figure 2.18b. Although there are...
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