Microbiology with Diseases by Body System (5th Edition)
5th Edition
ISBN: 9780134477206
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6, Problem 2SA
Support or refute the following statement: Microbes cannot tolerate the low pH of the human stomach.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The pathogenic strain of the bacterium E. coli (0157:H7) has been shown to be responsible for lethal outbreaks
of food poisoning. Bacteria on contaminated food enters the stomach and travels to the large intestine where
it causes severe diarrhea. If it enters the bloodstream it causes hemolytic uremic syndrome which results in
severe anemia, kidney failure, and in some cases death.
The stomach is an extremely acidic environment and to survive the bacteria have a series of enzymes that they
produce to protect themselves. This acid stress response is mediated primarily through the gad operon.
What is an operon?
O a. A series of genes controlled by the same operator
O b. A series of genes on the same MRNA molecule
O C. A series of genes that all have the same function
O d. A series of genes all regulated by the same repressor
The pH in the rumen of corn-fed cows is imbalanced and harbors E. coli bacteria (such as strain O157:H7) which is especially pathogenic to humans.
True
False
n terms of oxygen requirements, what type of organism would most likely be responsible for a foodborne illness associated with canned
foods?
Chapter 6 Solutions
Microbiology with Diseases by Body System (5th Edition)
Ch. 6 - Why should cardiac nurses and respiratory...Ch. 6 - Cavities Gone Wild Five-year-old Daniel appears to...Ch. 6 - Why do clinical laboratory scientists keep many...Ch. 6 - Boils in the Locker Room For several weeks,...Ch. 6 - Some students transfer some gunk from a 2-week-old...Ch. 6 - Which of the following can grow in a Petri plate...Ch. 6 - In the laboratory, a sterile inoculating loop is...Ch. 6 - Superoxide dismutase _____________. a. causes...Ch. 6 - The most reactive of the four toxic forms of...Ch. 6 - Microaerophiles that grow best with a high...
Ch. 6 - Prob. 6MCCh. 6 - Organisms that preferentially may thrive in icy...Ch. 6 - Prob. 8MCCh. 6 - Which of the following terms best describes an...Ch. 6 - In a defined medium, ______________. a. the exact...Ch. 6 - Which of the following is most useful in...Ch. 6 - Which of the following methods is best for...Ch. 6 - A Coulter counter is a(n) ________________. a....Ch. 6 - Lyophilization can be described as ___________. a....Ch. 6 - Quorum sensing is _____________. a. the ability to...Ch. 6 - Prob. 1FIBCh. 6 - Prob. 2FIBCh. 6 - Prob. 3FIBCh. 6 - Prob. 4FIBCh. 6 - Prob. 5FIBCh. 6 - Fill in the Blanks 6. Cells that shrink in...Ch. 6 - Fill in the Blanks 7. Obligate ________ exist in...Ch. 6 - Prob. 8FIBCh. 6 - Fill in the Blanks 9. Microbes that reduce N2 to...Ch. 6 - Fill in the Blanks 10. A student observes a...Ch. 6 - Fill in the Blanks 11. Chemolithotrophs acquire...Ch. 6 - Prob. 1VICh. 6 - Prob. 2VICh. 6 - High temperature affects the shape of particular...Ch. 6 - Support or refute the following statement:...Ch. 6 - Explain quorum sensing, and describe how it is...Ch. 6 - Why must media, vessels, and instruments be...Ch. 6 - Why is agar used in microbiology?Ch. 6 - What is the difference between complex media and...Ch. 6 - Draw and label the four distinct phases of a...Ch. 6 - If there are 47 cells in 1 l of sewage, how many...Ch. 6 - Prob. 9SACh. 6 - Prob. 10SACh. 6 - Explain the differences among photoautotrophs,...Ch. 6 - Contrast the media described in Tables 6.3 and 6.4...Ch. 6 - How does a chemostat maintain a constant...Ch. 6 - A scientist describes an organism as a...Ch. 6 - Pasteurization is a technique that uses...Ch. 6 - Two cultures of a facultative anaerobe are grown...Ch. 6 - Some organisms require riboflavin (vitamin B2) to...Ch. 6 - A scientist inoculates a bacterium into a complex...Ch. 6 - How can regions within biofilms differ in their...Ch. 6 - A scientific article describes a bacterium as an...Ch. 6 - Prob. 8CTCh. 6 - Prob. 9CTCh. 6 - Starting with 10 bacterial cells per milliliter in...Ch. 6 - Suppose you perform a serial dilution of 0.1-ml...Ch. 6 - How might the study of biofilms benefit humans?Ch. 6 - The filamentous bacterium Beggiatoa gets its...Ch. 6 - Given that Haemophilus ducreyi is a...Ch. 6 - Examine the graph in Figure 6.3. Note that the...Ch. 6 - Prob. 16CTCh. 6 - Using the terms in Figure 6.8a, describe the...Ch. 6 - Prob. 18CTCh. 6 - Prob. 19CTCh. 6 - Prob. 20CTCh. 6 - Prob. 21CTCh. 6 - Prob. 22CTCh. 6 - Viable plate counts are used to estimate...Ch. 6 - Using the following terms, fill in the following...
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
- At least 70 people attending a national conference became ill with what appeared to be food poisoning. Three hospitals in the area treated and released 48 attendees who complained of nausea and vomiting; others with similar symptoms were hospitalized overnight. A health official noted that all the patients had eaten brunch or lunch at the same hotel. The hotel’s lunch menu included roast chicken, roast beef, and a vegetable pasta dish. Because some of the people who became ill were vegetarian, there was particular interest in determining whether the pasta dish might be contaminated. At the time of the report, health officials were still looking for the source of the outbreak. The hotel was cooperating in the investigation and had voluntarily halted food service for the time being. Explain why you might consider this problem important enough to investigate. Give at least three reasons for investigating and explain suitable recommendations and interventions for controlling the problem…arrow_forwardBacteria are friends of man. Discuss.arrow_forwardIndicate whether the following sentences is True or False With reason Sentence true False 1. Linoleic and linolenic are polyunsaturated 18C essential fatty acids present in human cells 2. Apolipoprotein B-48 is present in chylomicron and LDL 3. Dialysis is the process of separating substances in solution based on size and the difference in their diffusion rates through a semipermeable membrane 4. IgA nephropathy is the most common type of glomerulonephritis, where polymeric IgA deposition causes glomerular membrane damage and can be examined by a kidney biopsy 5. These lab tests can be required for diagnosing anemia: serum ferritin, transferrin saturation, vit B12, folate, and iron levels 6. Diabetes insipidus is a disorder involves an abnormal increase in diluted urine output, ↑ fluid intake, and thirst, all occurs due to the decrease activity of ADH 7. ACE inhibitors…arrow_forward
- holsappleeus scarius is a normal flora of the human intestenal tract. its facultative anaerobe capable of catabolizing carbohydrates. which conditions will give them the most growth?arrow_forwardGive detailed Solution with explanation needed..don't give Handwritten answer .don't use Ai for answering thisarrow_forwardWhat is the mode by which organisms acquire nitrogen from the surroundings How do we maintain a steady supply of amino acids in the body? please answer allarrow_forward
- Food poisoning can be divided into two categories: food infection and food intoxication. On the basis of toxin production by bacteria, explain the difference between these two categories.arrow_forwardChoose the option that is best described by each of the following statements 1 1. Attacks the N-terminus 2. Uses proteins as substrates 3. Trypsin is an example 4. Breaks down short peptides 5. Cleaves C-terminal amide bonds 6. Pepsin is an example Aminopeptidase Protease aspartvl protease Peptidase Peptidase serine proteasearrow_forwardAnswer the following. A. Which part of the refrigerator should be used for storing raw meat? B. How long can raw meat stay in fridge? C. At what temperature should meat be refrigerated?arrow_forward
- The pH of human stomach acid ranges from 1.0 to 3.0, whereas a healthy esophagus has a pH of approximately 7.0. In gastroesophageal reflux disease (GERD), often called acid reflux, stomach acid flows backward from the stomach into the esophagus. Repeated episodes in which esophageal pH goes below 4.0, considered clinical acid reflux, can result in bleeding ulcers and damage to the esophageal lining. The data in the Figure, from a patient with GERD, show esophageal pH during a sleeping reflux event. How many minutes does it take to go from the peak of the reflux event (when pH is most acidic) to when the reflux event is over? Source: Based on T. Demeester et al. 1976. Patterns of gastroesophageal reflux in health and disease. Annals of Surgery 184:459469.arrow_forwardSuggest a reason why biosynthesis of amino acids and of proteins would eventually cease in an organism with carbohydrates as its only food source.arrow_forwardclostridium botulinum is a bacterium usually present in soil that may cause botulism. Briefly explain why one or few cells of a pathogenic bacterium, such as clostridium botulism, by itself typically does not secrete a toxin, despite the species as a whole being characterized as toxin producing.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Chapter 5 Microbial Metabolism; Author: Heather Davis;https://www.youtube.com/watch?v=wH_HrsfDWZw;License: Standard Youtube License