Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 53, Problem 2CT
A water sample could be negative for Enterococcus and coliforms and still be a major public health threat. Why?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Every year, supposedly safe municipal water supplies causeoutbreaks of enteric illness.a. How in the course of water analysis and treatment might thesepathogens be missed?b. Why is there less tolerance for a fecal coliform in drinking orrecreational water than for other bacteria?
Why do we test water for coliforms if they are not considered pathogenic?
As you can see on the blood agar plates, some microbes can lyse red blood cells releasing nutrients into the surrounding area. What might the advantage be for a bacteria to be able to do this? Do you think this could have an effect on the bacteria’s virulence? Explain.
Chapter 53 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Ch. 53 - Prob. 1QCh. 53 - Will E. coli grow on Enterococcus agar, and will...Ch. 53 - Why can filtration be used to sterilize culture...Ch. 53 - Prob. 4QCh. 53 - Why is the membrane filter technique useful for a...Ch. 53 - Design an experiment to detect the presence and...Ch. 53 - A water sample could be negative for Enterococcus...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Identify each of the following characteristics as belonging to cervical, thoracic, or lumbar vertebrae; the sac...
Human Anatomy & Physiology (2nd Edition)
1. Which is a function of the skeletal system? (a) support, (b) hematopoietic site, (c) storage, (d) providing ...
Anatomy & Physiology
What type of cut would separate the brain into anterior and posterior parts?
Anatomy & Physiology (6th Edition)
SCIENCE, TECHNOLOGY, AND SOCIETY In many countries, irrigation is depleting aquifers to such an extent that lan...
Campbell Biology (11th Edition)
5. When the phenotype of heterozygotes is intermediate between the phenotypes of the two homozygotes, this patt...
Biology: Life on Earth
Police Captain Jeffers has suffered a myocardial infarction. a. Explain to his (nonmedically oriented) family w...
Human Physiology: An Integrated Approach (7th Edition)
Knowledge Booster
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
- Why not test water samples directly for Salmonella typhosa or other pathogens?arrow_forwardEvery year, supposedly safe municipal water supplies cause outbreaks of enteric illness.Using the Wisconsin outbreak example from the 1990s, explain how pathogens can slip through water analysis and treatment processes undetected and untreated.arrow_forwardWhich of the following is an important measure that may prevent bacterial contamination in tube feeding formulas? Question 71 options: a) Discarding opened containers of formula not used within 24 hours b) Adding formula to the feeding container before it empties completely c) Using the same feeding bag and tubing each day d) Adding the full days worth of formula to the bag at the start of each dayarrow_forward
- Explain why gram negative bacteria in general are more toxic than gram positive bacteria.arrow_forwardall of the above The following enteric diseases can be contracted from drinking contaminated water except: * O typhoid fever and cholera ) cholera and malaria amoebiasis and typhoid fever shigellosis and typhoid fever Blood-borne pathegens are Infectlous microorganisms.present in thearrow_forwardSavlon Extra” disinfectant is known to exhibit good antimicrobial activity against Shigella dysenteriae. At 20oC a concentration of 5% v/v kills 2.0 x106 Sh. dysenteriae cells in 15 minutes. At 25oC the organisms were killed in 5 minutes. a) Calculate the temperature coefficient of Savlon Extra b). How long will it take the same concentration to kill the same number of Sh. dysenteriae cells at 30oC?arrow_forward
- What are the implications if your drinking water is contaminated with coliforms? And give three examples of disease caused by coliform infection.arrow_forwardIs this the correct answer?. (9)arrow_forwardWhy is it important to leave your bottle at room temperature (arn not refrigerate it) while waiting days before checking for contamination?arrow_forward
- A stool specimen of a patient with severe diarrhea was cultured in a series of specialized media for isolation of enteric organisms. The cultures yielded three isolates that were species of Salmonella, Shigella, and Escherichia. Explain why the Hydrogen sulfide production test would be diagnostically significant.arrow_forwardEnteric bacteria include Staphylococcus and Streptococcus spp. True or falsearrow_forwardWhile it is true that not all coliforms are pathogenic under normal conditions, please name two situations that can occur due to infection by coliforms under abnormal conditions (when they are present where they are not supposed to be or when their numbers exceed acceptable levels)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningBasic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
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
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Serology 101: Testing for IgG and IgM antibodies; Author: Beckman Coulter Dx;https://www.youtube.com/watch?v=LtqKB-qpJrs;License: Standard youtube license