Microbiology: An Introduction Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition) (What's New in Microbiology)
13th Edition
ISBN: 9780134688640
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 1CAE
Clostridium botulinum is a strict anaerobe; that is, it is killed by the molecular oxygen (O2) present in air. Humans can die of botulism from eating foods in which C. botulinum is growing. How does this bacterium survive on plants picked for human consumption? Why are home-canned foods most often the source of botulism?
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Chapter 4 Solutions
Microbiology: An Introduction Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition) (What's New in Microbiology)
Ch. 4 - DRAW IT Diagram each of the following flagellar...Ch. 4 - Endospore formation is called (a) _____. It is...Ch. 4 - DRAW IT Draw the bacterial shapes listed in (a),...Ch. 4 - Match the structures in column A to their...Ch. 4 - Why is an endospore called a resting structure? Of...Ch. 4 - Compare and contrast the following a. simple...Ch. 4 - Prob. 7RCh. 4 - Starch is readily metabolized by many cells, but a...Ch. 4 - Match the characteristics of eukaryotic cells in...Ch. 4 - NAME IT What group of microbes is characterized by...
Ch. 4 - Which of the following is not a distinguishing...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which statement best describes what happens when a...Ch. 4 - Which of the following statements best describes...Ch. 4 - Which of the following is false about fimbriae? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - Which of the following pairs is mismatched? a....Ch. 4 - You have isolated a motile, gram-positive cell...Ch. 4 - The antibiotic amphothericin B disrupts plasma...Ch. 4 - How can prokaryotic cells be smaller than...Ch. 4 - The smallest eukaryotic cell is the motile alga...Ch. 4 - Two types of prokaryotic cells have been...Ch. 4 - In 1985, a 0.5-mm cell was discovered in...Ch. 4 - When E. coli cells are exposed to a hypertonic...Ch. 4 - Clostridium botulinum is a strict anaerobe; that...Ch. 4 - A South San Francisco child enjoyed bath time at...Ch. 4 - Live cultures of Bacillus thuringiensis (Dipel)...
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- clostridium 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_forwardWhat are the answers to the following?arrow_forwardA microbiologist is troubleshooting a batch of home-brewed ale that did not ferment properly. She noticed that the alcohol content was only 2%, well below the desired level. Microscopic examination showed numerous yeast cells. Chemical analysis indicated low levels of sugar, high levels of CO2 , and large amounts of protein in the liquid. What did the microbiologist conclude as the probable cause of the beer not coming out properly?arrow_forward
- You, a hospital administrator, are confronted by a news reporter who asks about an outbreak in your hospital caused by the anaerobic sporeformer Clostridium botulinum. Four post-operative patients have died as a result of the outbreak and 42 patients are currently suffering from botulism. The reporter asks about your investigation and what is being done to quell the outbreak. You respond by saying that the following make sense: (SELECT ALL CORRECT ANSWERS) Several of the patients who have been diagnosed with C. botulinum consumed salad as part of their dinner menu (hospital provided). The local health department, CDC and FDA agencies have been contacted and salad samples have been sent to these agencies for analysis. All salad products have been removed from distribution with hospital food service. 0 C. botulinum is a spore-forming bacterial species and the spores are difficult to eliminate but appropriate measures are being taken to clean rooms where patients reside and the hospital…arrow_forwardStrict anaerobes cannot live in the presnece of oxgyen because: a.)they have to mitochondria b.) they cannot absord nutrients from the envioment c.)they cannot make macromolcules d.) they lack detoxifing enzymes e.) they cannot make ATP oragnisms need phosphorous to incoroprate it in their: a.) cell membrane b.) DNA and RNA c.) ATP d.) a and c e.) a, b, and carrow_forwardName the bacteria (Clostridium botulinum) that causes botulism.arrow_forward
- Thermoplasma and Picrophilus grow best in which of the following extreme conditions?a) Low pH b) High salt c) High temperatured) a and c e) b and carrow_forwardMost pathogens fall into which group on this chart?arrow_forwardDiseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilms can be more pathogenic.arrow_forward
- About becterial enzymes, it is CORRECT to affirm that: a). Some becterial enzymes can help the microbe fight the immune system, by destroying lgA.b). Coagulases are enzymes that use the host's fibrinogen and form a semi-solid get that isolates amd protects the bacteria.c). Some bacterial enzymes such as hyaluronidase can help the microble move through the host's tissus by destroying the tissue's components.d). Fibrolysin is an enzymes that can help from blood clots.arrow_forwardwhat is the correct answer?arrow_forwardClassify the following attributes as belonging to either purple photosynthetic bacteria or heliobacteria. Purple Photosynthetic Bacteria Heliobacteria Bacteriochlorophyll g Heterotrophic Cannot form endospores Reduced sulfur is electron donor for NAD* reduction Gram-positive Gram-negative Autotrophic Some form endospores Organic carbon electron donor for NAD* reduction Bacteriochlorophyll a or b Possess intracellular cytoplasmic Possess only plasma membrane membranesarrow_forward
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