Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 32.13, Problem 1CR
Summary Introduction
Listeria monocytogenes is a Gram-positive, coccobacillus, nonsporulating, and facultative bacterium which is responsible for causing listeriosis (a gastrointestinal food infection). This bacterium is responsible for serious food-borne infections.
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Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be normal and beneficial but also be pathogenic?
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
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.
Chapter 32 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 32.1 - What is potable water?Ch. 32.1 - Prob. 2MQCh. 32.1 - Prob. 1CRCh. 32.2 - Why is Escherichia coli used as an indicator...Ch. 32.2 - What procedures are used to ensure the safety of...Ch. 32.2 - Prob. 1CRCh. 32.3 - What organism causes cholera, and what are the...Ch. 32.3 - Prob. 2MQCh. 32.3 - Prob. 3MQCh. 32.3 - Why are antibiotics ineffective for the treatment...
Ch. 32.4 - How is legionellosis transmitted?Ch. 32.4 - Identify specific measures for control of...Ch. 32.4 - Prob. 1CRCh. 32.5 - Contrast the causative agents of typhoid and noro...Ch. 32.5 - Prob. 2MQCh. 32.5 - Prob. 1CRCh. 32.6 - List the major food groups as categorized by their...Ch. 32.6 - Identify physical and chemical methods used for...Ch. 32.6 - List some dairy, meat, beverage, and vegetable...Ch. 32.6 - Prob. 1CRCh. 32.7 - Prob. 1MQCh. 32.7 - Describe microbial sampling procedures for solid...Ch. 32.7 - Prob. 3MQCh. 32.7 - Prob. 1CRCh. 32.8 - Identify the symptoms and mechanism of...Ch. 32.8 - Prob. 2MQCh. 32.8 - Staphylococcal food poisoning results from the...Ch. 32.9 - Prob. 1MQCh. 32.9 - Prob. 2MQCh. 32.9 - Clostridium food poisoning results from ingestion...Ch. 32.10 - Describe salmonellosis food infection. How does a...Ch. 32.10 - Prob. 2MQCh. 32.10 - Prob. 1CRCh. 32.11 - How do STEC strains of Escherichia coli differ...Ch. 32.11 - Why are meats prime vehicles for pathogenic E....Ch. 32.11 - Toxigenic Escherichia coli cause many food...Ch. 32.12 - Describe the pathology of Campylobacter food...Ch. 32.12 - Prob. 2MQCh. 32.12 - Prob. 1CRCh. 32.13 - Prob. 1MQCh. 32.13 - Prob. 2MQCh. 32.13 - Prob. 1CRCh. 32.14 - In what two forms can Bacillus cereus food...Ch. 32.14 - Compared with all other foodborne or waterborne...Ch. 32.14 - Prob. 1CRCh. 32 - As a visitor to a country in which cholera is an...Ch. 32 - Prob. 2AQCh. 32 - Prob. 3AQ
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