Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 27, Problem 5MCQ
The water used to prepare intravenous solutions in a hospital contained endotoxins. Infection control personnel performed plate counts to find the source of the bacteria. Their results:
Bacteria/100 ml | |
Municipal water pipes | 0 |
Boiler | 0 |
Hot water line | 300 |
All of the following conclusions about the bacteria can be drawn except which one?
- a. They were present as a biofilm in the pipes.
- b. They are gram-negative.
- c. They come from fecal contamination.
- d. They come from the city water supply.
- e. none of the above
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
This agar plate was obtained by spreading 0.1 ml of a 1:1,000 dilution of a bacterial sample taken from cole slaw, and then incubating at 37oC for 24h. This plate indicates that:
a. there are 42 bacteria/ml on the cole slaw
b. there are at least 4 different types of bacteria in the cole slaw
c. there are approximately 42,000 bacteria/ml in the cole slaw sample
d. there are approximately 420,000 bacteria/ml in the cole slaw
e. these bacteria cannot cause illness because they came from the person’s skin who made the cole slaw
Which of the following methods is most sensitive for identifyingdifferent strains of a microbe?a. microscopic examination
b. hemolysis on blood agar
c. DNA analysis
d. agglutination test
Two patients, with identical medical histories are in adjacent hospital beds. Each is infected
with Streptococcus pneumoniae. Patient A's infection progresses to pneumonia while
Patient B's infection resolves quickly. The microbial stain of the lung fluid from Patient A
indicated the bacterial cells had a capsule, while Patient B's lung fluid stain did not. Why
did the capsule affect the course of the infection in Patient A?
Chapter 27 Solutions
Microbiology: An Introduction
Ch. 27 - The koala is a leaf-eating animal. What can you...Ch. 27 - Give one possible explanation of why Penicillium...Ch. 27 - In the sulfur cycle, microbes degrade organic...Ch. 27 - Why is the phosphorus cycle important?Ch. 27 - DRAW IT 5. Identify where the following processes...Ch. 27 - Prob. 6RCh. 27 - Outline the treatment process for drinking water.Ch. 27 - Prob. 8RCh. 27 - Bioremediation refers to the use of living...Ch. 27 - NAME IT 10. These nitrogen-fixing prokaryotes...
Ch. 27 - Activated sludge system a. the process takes place...Ch. 27 - Prob. 2MCQCh. 27 - Nitrogen fixation a. the process takes place under...Ch. 27 - Prob. 4MCQCh. 27 - The water used to prepare intravenous solutions in...Ch. 27 - CO2+H2SLightLightC6H12O6+S0 a. aerobic respiration...Ch. 27 - Prob. 7MCQCh. 27 - CO2+8H++8eCH4+2H2O a. aerobic respiration b....Ch. 27 - Prob. 9MCQCh. 27 - Coliforms are used as indicator organisms of...Ch. 27 - Prob. 1ACh. 27 - Explain the effect of dumping untreated sewage...Ch. 27 - Flooding after two weeks of heavy rainfall in...Ch. 27 - The bioremediation process shown in the photograph...
Additional Science Textbook Solutions
Find more solutions based on key concepts
More than one choice may apply. Using the terms listed below, fill in the blank with the proper term. anterior ...
Essentials of Human Anatomy & Physiology (11th Edition)
2. Define equilibrium population. Outline the conditions that must be met for a population to stay in genetic e...
Biology: Life on Earth (11th Edition)
Explain why hyperthermophiles do not cause disease in humans.
Microbiology with Diseases by Taxonomy (5th Edition)
Identify me theme or themes exemplified by (a) the sharp quills of a porcupine (b) the development of a multice...
Campbell Biology in Focus
Describe the role and impact of microbes on the earth.
Microbiology Fundamentals: A Clinical Approach - Standalone book
Describe Mendels conclusions about how traits are passed from generation to generation.
Concepts of Genetics (12th 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
- Identify the genus that best fits each of the following descriptions: a. This organism can produce a fuel used for home heating and for generating electricity. b. This gram-positive genus presents the greatest source of bacterial damage to the beekeeping industry. c. This gram-positive rod is used in dairy fermentations. d. This gammaproteobacterial genus is well suited to degrade hydrocarbons in an oil spill.arrow_forwardA patient was admitted to the ER with severe virulent E. coli bacteremia and was given a high dose of intravenous ciprofloxacin antibiotic, to which the patient was not allergic. The patient develops fever and chills shortly afterward the administration of the antibiotic. Which of the following best describes the probable cause? Group of answer choices A. The Gram-negative E. coli released the endotoxin in the form of lipid A from the disintegrated lipopolysaccharides (LPS) upon death by the antibiotic leading to chills and fever. B. The Gram-negative E. coli released the endotoxin in the form of Protein A from the disintegrated lipopolysaccharides (LPS) upon death by the antibiotic leading to chills and fever. C. The Gram-positive E. coli released the endotoxin in the form of Protein A from the disintegrated lipopolysaccharides (LPS) upon death by the antibiotic leading to chills and fever. D. The Gram-positive E. coli released the endotoxin in the form of lipid A from the…arrow_forward(c) Public health scientists wanted to investigate the effect of ionising radiation on the growth of Salmonella typhimurium in the presence of antibiotics. They grew bacterial colonies of Salmonella typhimurium in petri dishes labelled A, B and C. The Petri dishes were kept at 36°C for 48 hours, with scientists observing the bacteria every 24 hours. The results for this investigation are below. Petri dish A B с Treatment Was subjected to ionising radiation followed immediately by a dose of antibiotic X An equal amount of antibiotic X was added (as was added to Petri dish A) Was given neither ionising radiation nor antibiotic X After 24 hours Small spots of growth on surface No growth Growth across whole surface After 48 hours (ii) Identify the purpose of petri dish C. Large spots of growth on surface No growth Growth across whole surface (i) Explain the effect of the ionising radiation on the bacteria. (iii) Explain why scientists must continue to develop new antibiotics.arrow_forward
- answer and explain the rationale plsarrow_forwardA glass flask is rinsed and autoclaved after use. It was then filled with sterile media in a sterile environment and covered. A few days, microbial growth appears in the flask. Assume the media and sterile environment is guaranteed to be sterile. What most likely caused the growth in the flask? a. The flask has to be rinsed with bleach before autoclaving b. A portion of the flask was not exposed to the steam c. Autoclaves only sanitize equipment, so you cannot expect the flask to be sterile d. Autoclaving inhibits growth, but does not kill microbesarrow_forwardChoose the combination of answers that most accurately completes the statement.Microbe(s) that is/are the target(s) of pasteurization include(s) a. Clostridium botulinum c. Salmonella species b. Mycobacterium species d. both b and carrow_forward
- Which of the following techniques are not used to classify microorganisms? A-Serological tests b. Aseptic technique C Sterilization d. Streaking method question e. Filtrationarrow_forwardWhich one of the following is the most resistant microorganism for sterilization: Select one: a. Lipid enveloped viruses b. Gram negative bacteria c. Gram positive bacteria d. Mycobacteriumarrow_forwardYou mixed up the numbers on the tubes when you inoculated the mannitol salt agar (MSA) plate. You do not know if you grew staph epidermis or E. coli. You found that the organism growing on the mannitol salt agar remained red after incubation. It is most likely that the organism is E.coli. a) True b) Falsearrow_forward
- Microbe(s) that is/are the target(s) of pasteurization include(s)a. Clostridium botulinum b. Mycobacterium species c. Salmonella species d. both b and carrow_forwardNote that it is not appropriate to self-diagnose outside of a medical context and this is a completely hypothetical scenario. Imagine you have a rash on your foot. You're concerned that it's an infection and inoculate a sample onto an agar plate. You wonder, How can I figure out whether the pathogen is a bacterium vs a eukaryote? You decide to use lab supplies to get a basic understanding of the pathogen. Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we could do in our lab. What is one experiment you could do, involving culturing the organism?arrow_forwardNote that it is not appropriate to self-diagnose outside of a medical context and this is a completely hypothetical scenario. Imagine you have a rash on your foot. You're concerned that it's an infection and inoculate a sample onto an agar plate. You wonder, How can I figure out whether the pathogen is a bacterium vs a eukaryote? You decide to use lab supplies to get a basic understanding of the pathogen. Be specific about what tests you use and what you expect the results to be. Limit yourself to experiments we could do in our lab. What is a procedure you could do, involving making a slide of the organism?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Archaea; Author: Bozeman Science;https://www.youtube.com/watch?v=W25nI9kpxtU;License: Standard youtube license