Microbiology: An Introduction
11th Edition
ISBN: 9780321733603
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: Benjamin Cummings
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Textbook Question
Chapter 25, Problem 4A
Which diseases of the gastrointestinal tract can be acquired by swimming in a pool or lake? Why are these diseases not likely to be acquired while swimming in the ocean?
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There have been many cases of human
infection with Salmonella caused by contact (or
ingestion) with raw or undercooked chicken.
This is an example of which type of microbial
source for foodborne illness?
A food animal - infection or colonization
during its lifetime
Contamination by human or animal feces
during growing, harvesting, washing,
transport, or storage
Contamination by naturally occurring
environmental organisms from soil or other
sources
None of the other four answers are correct
Contamination by human microbiota or
pathogens during handling & preparation
Which of the following is NOT true about the transmission of diseases of the digestive system?
Which option is the answer:
1. Many are transmitted in food and/or water
2. The fecal-oral transmission cycle can be broken by proper food preparation and storage, and handwashing
3. The fecal-oral transmission cycle can be broken by proper sewage disposal and disinfection/filtration of drinking water
4. Some are transmitted from person to person directly or indirectly via the fecal-oral route
5. None of the other four answers (All are true)
Which of the following statements about the microbiota of the intestines is false?
1)The bacterial population in the small intestine is sparse compared to that of the colon
2)Aerobes outnumber anaerobes 100 to 1
3)Bacteria in the intestines aid in the digestion of food substances
4)None of these choices are false
Chapter 25 Solutions
Microbiology: An Introduction
Ch. 25 - Complete the following table:Ch. 25 - Complete the following table:Ch. 25 - DRAW IT Identify the site colonized by the...Ch. 25 - Prob. 4RCh. 25 - Prob. 5RCh. 25 - Explain how the following diseases differ and how...Ch. 25 - Prob. 7RCh. 25 - Complete the following table:Ch. 25 - Look at life cycle diagrams for human tapeworm and...Ch. 25 - Prob. 1MCQ
Ch. 25 - Prob. 2MCQCh. 25 - Prob. 3MCQCh. 25 - Gastric ulcers are caused by a. stomach acid. b....Ch. 25 - Microscopic examination of a patients fecal...Ch. 25 - Prob. 6MCQCh. 25 - Identification is based on the observation of...Ch. 25 - Prob. 8MCQCh. 25 - Prob. 9MCQCh. 25 - This microbe is frequently transmitted to humans...Ch. 25 - Why is a human infection of trichinella considered...Ch. 25 - Complete the following table:Ch. 25 - Match the foods in column A with the microorganism...Ch. 25 - Which diseases of the gastrointestinal tract can...Ch. 25 - Prob. 1CAECh. 25 - Prob. 2CAECh. 25 - Prob. 3CAECh. 25 - Three to 5 days after eating Thanksgiving dinner...
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- What are the ways a pathogen can cause damage in gastrointestinal tractarrow_forwardWhat might be a reason why a Buruli ulcer is initially painless? Why was it necessary to administer antibacterial drugs for two months rather than two weeks? What environmental similarities exist in the endemic countries?arrow_forwardWhy does Helicobacter pylori cause ulceractions in the lining of the Stomach? 1)The microbes secrete a toxin that prevents the host from detecting invasion of the microbe and thus allows it to thrive in the stomach and damage the host cells. 2)After invasion of the microbe in the cells lining the stomach, they are no longer able to produce mucous to protect the host cells from acid erosion 3)The microbe produces an enzyme that causes the cell to produce potent digestive enzymes that erode the stomach lining. 4)Once the microbe has entered the stomach, it releases digestive enzymes that degrade the mucous secreting cells.arrow_forward
- Why is gout more prevalent in populations that eat relatively large amounts of meat?arrow_forwardWhich streptococcal disease is most prevalent? Why do you think this is the case?arrow_forwardExplain why a person with overt symptoms of intestinal Entamoebahistolytica infection is unlikely to transmit infection to others.arrow_forward
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