EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 15, Problem 2AQ
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Chapter 15 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 15.1 - Why is it necessary to consider microbial...Ch. 15.1 - What are three reasons that functional traits...Ch. 15.1 - What is convergent evolution and how is it...Ch. 15.2 - What form of photosynthesis was most likely the...Ch. 15.2 - Which bacterial phyla contain phototrophs?Ch. 15.3 - What are the differentiating properties of the...Ch. 15.3 - Prob. 2MQCh. 15.3 - How are prochlorophytes, such as Prochlorococcus,...Ch. 15.4 - What is the source of the purple color from which...Ch. 15.4 - Prob. 2MQ
Ch. 15.4 - Compare and contrast the metabolism, morphology,...Ch. 15.5 - What are some similarities between purple...Ch. 15.5 - Prob. 2MQCh. 15.5 - Compare and contrast the metabolism of purple...Ch. 15.6 - Prob. 1MQCh. 15.6 - Prob. 2MQCh. 15.6 - Prob. 1CRCh. 15.7 - Prob. 1MQCh. 15.7 - Prob. 2MQCh. 15.7 - Prob. 1CRCh. 15.8 - What types of anoxygenic phototrophs contain...Ch. 15.8 - Prob. 2MQCh. 15.8 - In what ways is Chloracidobacterium thermophilum...Ch. 15.9 - What are the typical electron donors used by...Ch. 15.9 - What bacterial phyla are known to contain...Ch. 15.9 - Prob. 1CRCh. 15.10 - What are the typical electron donors used by...Ch. 15.10 - Prob. 2MQCh. 15.10 - In what ways are sulfur-reducing bacteria...Ch. 15.11 - Describe the energy and carbon metabolism of...Ch. 15.11 - What are some ecological strategies that sulfur...Ch. 15.11 - Prob. 1CRCh. 15.12 - What mechanisms do free-living diazotraphs use to...Ch. 15.12 - Prob. 2MQCh. 15.12 - What are some ways that diazotrophs protect...Ch. 15.13 - Under what conditions would you expect...Ch. 15.13 - Prob. 2MQCh. 15.13 - Prob. 1CRCh. 15.14 - In what phylogenetic groups are Geobacter and...Ch. 15.14 - Prob. 2MQCh. 15.14 - Prob. 1CRCh. 15.15 - What habitat characteristics govern the diversity...Ch. 15.15 - How do aerobic neutrophilic iron-oxidizers keep...Ch. 15.15 - Prob. 1CRCh. 15.16 - What is the difference between a methanotroph and...Ch. 15.16 - What is unique about the methanotroph...Ch. 15.16 - What are the differences between type I and type...Ch. 15.17 - Prob. 1MQCh. 15.17 - What are the different ways in which species of...Ch. 15.17 - Compare and contrast the life cycle of Myxococcus...Ch. 15.18 - Prob. 1MQCh. 15.18 - Prob. 2MQCh. 15.18 - Prob. 1CRCh. 15.19 - What are the major differences between spirochetes...Ch. 15.19 - Name two diseases of humans caused by spirochetes.Ch. 15.19 - Contrast the motility of spirochetes with that of...Ch. 15.20 - Prob. 1MQCh. 15.20 - Prob. 2MQCh. 15.20 - Contrast the life cycle of Hyphomicrobium with...Ch. 15.21 - Describe how a sheathed bacterium such as...Ch. 15.21 - List two metals that are oxidized by sheathed...Ch. 15.21 - In what environment might you expect to find...Ch. 15.22 - What benefit do magnetic bacteria accrue from...Ch. 15.22 - Would you expect to find greigite or magnetite in...Ch. 15.22 - In what way does a magnetosome contribute to the...Ch. 15 - Describe a key physiological feature of the...Ch. 15 - Describe the metabolism for each of the following...Ch. 15 - Using an example from each of the morphologically...
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- What are the answers to the following?arrow_forwardFlasks A and B contain broth, and are inoculated with an identical number of bacteria that are facultative anaerobes. Flask A contains a triglyceride lipid as the sole nutrient source, and Flask B contains a monosaccharide called fructose as the sole nutrient source. Both flasks are incubated at 30°C with aeration (oxygen is added to the broth). Assume the bacteria are capable of catabolism of both fructose and triglycerides. Mark all the correct statements pertaining to these cultures. A. Under anaerobic conditions, cells in flask A will produce more ATP B. Cells from flask B will produce more carbon dioxide C. Cells from flask B will produce more ATP D. Flask A will have the greater cell mass E. Cells from flask A will produce more ATP F. Cells from flask A will produce more carbon dioxide G. Flask B will have the greater cell mass H. Under anaerobic conditions, cells in flask B will produce more ATParrow_forwardDescribe a key physiological feature of the following Bacteriathat would differentiate each from the others: Acetobacter,Methylococcus, Azotobacter, Photobacterium, Desulfovibrio, andSpirillum.arrow_forward
- If Clostridium botulinum is an anaerobe, how might botulinum toxin get into food?arrow_forwardConsider a gram-negative pathogen isolated from marine mammals. This pathogen is subjected to a series of tests and found to have the following characteristics: oxidase-positive, does not hydrolyze urea, produces indole, does not produce acetoin. Which of the following could it be? O Pasteurella mulocida O Klebsiella pneumoniae O Yersinia enterocolitical O Mannheimia haemolyticaarrow_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
- In detail, discuss the morphological characteristics of the following bacteria. Corynebacterium pseudotuberculosis Corynebacterium striatum Corynebacterium ulcerans Corynebacterium urealyticum include references.arrow_forwardBacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles Microaerophilic alkalophiles Psycrophilic neutraphiles Thermophilic acidophilesarrow_forwardyou grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which plates showed bacterial growth, and what does the zone around the metronidazole disc represent? Additionally, explain what types of bacterial growth metronidazole affects and why.arrow_forward
- What is one difference between fermentation and anaerobic respiration? Since neither requires oxygen, why would a microbe select one of these versus the other? Name a specific microbe which uses fermentation and a specific microbe which uses anaerobic respiration.arrow_forwardWhat is the oxygen requirement of this microbe? Thioglycollate Broth -Obligate aerobe=growth only occur at the top band of the broth -Facultative anaerobes= growth uniformly throughout the broth -Obligate anaerobes= growth only at the bottom of the tube -Aerotolerant= growth throughout the tube until just below the surface of the broth -Microaerophiles= growth in a heavy band just below the surface of the brotharrow_forwardStaphylococcus aureus is non-motile, a facultative anaerobe, and a mesophile. At 37⁰C in abundant glucose, which incubation environment is more likely to produce the highest cell mass of S. aureus within two hours? Flask with aeration to add oxygen to the broth and shaking Flask left on the lab bench Flask grown in an anaerobic chamber that removes oxygen from the air around the flask Flask without aeration All will be equalarrow_forward
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