Microbiology Fundamentals: A Clinical Approach
Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 20, Problem 1Q
Summary Introduction

Introduction:

Infections occur due to an abnormal condition of body that disrupts important physical and physiological function of body. Disease is caused by improper diet, lack of exercise, various infectious agents that are present in nature, toxic substances, genetic disorders, and depression, stress that play role in illness and disturbs normal functioning of body.

Expert Solution & Answer
Check Mark

Answer to Problem 1Q

Correct answer:

Clostridium difficile is a most common cause of acute diarrhea and is associated with CDC due to its antibiotic resistance characteristics. Therefore, option (b) is correct.

Option (b) is given as “Clostridium difficile”.

Explanation of Solution

Justify reason for the correct statement:

There are some drug resistant pathogens are present in large intestine such as C.difficile. An antibiotic treatment may disrupt large intestine as antibiotic disturbs normal biota. Due to these bacteria produces two enterotoxins such as toxin A and B causes necrosis in intestinal walls and results in diarrhea as well as Clostridium difficile colitis. It is condition occurs in which inflammation occurs in colon.

Hence, option (b) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “Salmonella”.

It is found in the intestine of humans and animals. It causes infections through contaminated food and water. It is does not CDC. Hence, it is a wrong answer.

Option (c) is given as “Cryptosporidium”.

It is microscopic parasite that can cause diarrheal disease in humans. Hence, it is a wrong answer.

Option (d) is given as “Shigella.

It is bacteria which causes acute diarrhea in humans by ingestion of contaminated food and water. Hence, it is a wrong answer.

Hence, options (a), (c) and (d) are incorrect.

Conclusion

The bacteria Clostridium difficile  is resistant to antibiotics and may cause Clostridium difficile colitis in which inflammation occurs in colon.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…
Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:
a. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent.  b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involved
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
Ebk:Nutrition & Diet Therapy
Health & Nutrition
ISBN:9780357391747
Author:DEBRUYNE
Publisher:Cengage
Text book image
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage
Text book image
Medical Terminology for Health Professions, Spira...
Health & Nutrition
ISBN:9781305634350
Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. Schroeder
Publisher:Cengage Learning
Text book image
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Text book image
Basic Clinical Laboratory Techniques 6E
Biology
ISBN:9781133893943
Author:ESTRIDGE
Publisher:Cengage
12DaysinMarch, Genital Infections for USMLE Step One; Author: Howard Sachs;https://www.youtube.com/watch?v=66zR_FypVFQ;License: Standard youtube license