Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 47, Problem 3Q
Even if a large number of S. mutans is in your saliva, how might you avoid tooth decay?
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Which of the following is not applicable to Listeria monocytogenes, or to the disease it causes, listeriosis?
A) O most people with healthy immune systems are not affected by it, or show only mild symptoms of disease
B) Ot can grow at refrigeration temperature
C) O it is a facultative intracellular pathogen
D) O polymerization of actin on its cell surface allow it to move
E) O listeriosis is typically transmitted by an insect vector
Adequate cooking is the usual way to prevent food poisoning. Whydoesn’t it work for Clostridium perfringens and Bacillus foodpoisoning?
Which of the following statements about Pasteurella multocida is false?a) Infections generally respond to a penicillin.b) It can cause epidemics of fatal disease in domestic animals.c) It is commonly found in the mouths of biting animals, including humans.d) A vaccine is used to prevent P. multocida disease in people.e) Cat bites are more likely to result in P. multocida infections than dog bites.
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Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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- All of the following pertain to listeriosis, except 1) intrauterine infection usually results in fetal death. 2) enterotoxin of the organism causes symptoms. 3) it causes a serious septicemia and meningitis in the elderly, immunocompromised, and infants. U 4) it causes symptoms of fever, diarrhea, and sore throat. 5) adequate pasteurization and thorough cooking of food can improve prevention.arrow_forwardWhat is the difference between food infection and foodintoxication? Into which category does listeriosis fall?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
- Write a paragraph describing the microscopic morphology of: a) Clostridium perfringes b) Clostridium tetani C) Clostridium botulinumarrow_forwardWhy do you think the slow growth rate of M. leprae makes leprosy treatment more difficult?arrow_forwardA patient that experiences hydrophobia, has the appearance of Negri bodies in nerve cells, and later produces symptoms of encephalitis is likely infected with A) O Neisseria meningitidis B) O Clostridium botulinum C) O Rabies virus D) O Streptococcus pyogenes E) O Clostridium tetaniarrow_forward
- Describe two characteristics of Streptococcus mutans that contribute to its ability to cause dental caries.arrow_forwardWhich of the following bacterial species is considered normal flora of the mouth? O 1) Streptococcus mutans 2) Escherichia coli 3) Klebsiella pneumoniae 4) Staphylococcus epidermidisarrow_forwardA parent calls to ask about giving a medication for diarrhea to his child, 12 years of age, who is recovering from the flu. The nurse expects the prescriber to recommend which medication? a) bismuth subsalicylate (Pepto-Bismol)b )Lactobacillus GG (Culturelle)c )belladonna alkaloid/phenobarbital combination (Donnatal Elixir)d) loperamide (Imodium A-D)arrow_forward
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