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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Textbook Question
Chapter 14.1, Problem 1MQ
- What is the fundamental difference between an oxygenic and an anoxygenic phototroph?
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The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
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You have a bacterial strain with the CMU operon:
a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a
kinase and regulator corresponding to a two-component system. The cmu operon is
activated when Pep 1 is added to the growth media.
Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon.
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Chapter 14 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 14.1 - What is the fundamental difference between an...Ch. 14.1 - What is the purpose of chlorophyll and...Ch. 14.1 - Why can phototrophic green bacteria grow at light...Ch. 14.1 - What are the functions of light-harvesting and...Ch. 14.2 - In which phototrophs are carotenoids found?...Ch. 14.2 - How does the structure of a phycobilin compare...Ch. 14.2 - Phycocyanin is blue-green. What color of light...Ch. 14.2 - What accessory pigments are present in...Ch. 14.3 - What parallels exist in the processes of...Ch. 14.3 - What is reverse electron flow and why is it...
Ch. 14.3 - What is the difference between cyclic and...Ch. 14.3 - What is reverse electron transport and why is it...Ch. 14.4 - Differentiate between cyclic and noncyclic...Ch. 14.4 - What is the key role of light energy in the...Ch. 14.4 - What evidence is there that anoxygenic and...Ch. 14.4 - Prob. 1CRCh. 14.5 - Prob. 1MQCh. 14.5 - How much NADPH and ATP is required to make one...Ch. 14.5 - Contrast autotrophy in the following phototrophs:...Ch. 14.5 - QWhat is a carboxysome, and what is its role in...Ch. 14.6 - Prob. 1MQCh. 14.6 - What is FeMo-co and what does it do?Ch. 14.6 - How is acetylene useful in studies of nitrogen...Ch. 14.6 - How might the ability to fix nitrogen help a...Ch. 14.7 - In a coupled reaction, how can you tell the...Ch. 14.7 - How does aerobic respiration differ from anaerobic...Ch. 14.7 - Describe the major differences between...Ch. 14.7 - Prob. 1CRCh. 14.8 - What enzyme is required for hydrogen bacteria to...Ch. 14.8 - Why is reverse electron flow unnecessary in H2...Ch. 14.8 - QWhich inorganic electron donors are used by the...Ch. 14.9 - Prob. 1MQCh. 14.9 - In terms of intermediates, how does the Sox system...Ch. 14.9 - Prob. 1CRCh. 14.10 - Prob. 1MQCh. 14.10 - What is the function of rusticyanin and where is...Ch. 14.10 - How can Fe2+ be oxidized under anoxic conditions?Ch. 14.10 - Prob. 1CRCh. 14.11 - Prob. 1MQCh. 14.11 - Prob. 2MQCh. 14.11 - Prob. 1CRCh. 14.12 - What are the electron donor and acceptor in the...Ch. 14.12 - What does electron transport in anammox bacteria...Ch. 14.12 - Compare CO2 fixation in anammox bacteria and...Ch. 14.12 - Prob. 1CRCh. 14.13 - For Escherichia coli, why is more energy released...Ch. 14.13 - How do the products of NO3 reduction differ...Ch. 14.13 - Where is the dissimilative nitrate reductase found...Ch. 14.13 - Prob. 1CRCh. 14.14 - How is SO42 converted to SO32 during dissimilative...Ch. 14.14 - Contrast the growth of Desulfovibrio on H2 versus...Ch. 14.14 - Give an example of sulfur disproportionation.Ch. 14.14 - Prob. 1CRCh. 14.15 - Prob. 1MQCh. 14.15 - What is reductive dechlorination and why is it...Ch. 14.15 - How does anaerobic glucose catabolism differ in...Ch. 14.15 - Compare and contrast ferric iron reduction with...Ch. 14.16 - What is the purpose of CO dehydrogenase?Ch. 14.16 - If acetogens conserve energy using the Rnf...Ch. 14.16 - What is electron bifurcation and what role does it...Ch. 14.16 - Compare and contrast acetogens with methanogens in...Ch. 14.17 - Which coenzymes function as C1 carriers in...Ch. 14.17 - In methanogens growing on H2 + CO2, how is carbon...Ch. 14.17 - How is ATP made in methanogenesis when the...Ch. 14.17 - What are the major differences in the conservation...Ch. 14.18 - When using CH4 as electron donor, why is...Ch. 14.18 - In which two ways does the ribulose monophosphate...Ch. 14.18 - What is unique about methanotrophy in...Ch. 14.18 - Prob. 1CRCh. 14.19 - Why is H2 produced during many types of...Ch. 14.19 - Why is acetate formation in fermentation...Ch. 14.19 - Define the term substrate-level phosphorylation:...Ch. 14.20 - How can homo- and heterofermentative metabolism be...Ch. 14.20 - Butanediol production leads to greater ethanol...Ch. 14.20 - QWhat are the major fermentation products of...Ch. 14.21 - Compare the mechanisms for energy conservation in...Ch. 14.21 - What type of substrates are fermented by...Ch. 14.21 - What are the substrates for the Clostridium...Ch. 14.21 - Prob. 1CRCh. 14.22 - Why does Propionigenium modestum require sodium...Ch. 14.22 - Of what benefit is the organism Oxalobacter to...Ch. 14.22 - Prob. 3MQCh. 14.22 - Give an example of a fermentation that does not...Ch. 14.23 - Give an example of interspecies H2 transfer. Why...Ch. 14.23 - Why can a pure culture of Syntrophomonas grow on...Ch. 14.23 - Why is syntrophy also called interspecies H2...Ch. 14.24 - How do monooxygenases differ in function from...Ch. 14.24 - What is the final product of catabolism of a...Ch. 14.24 - Prob. 3MQCh. 14.24 - How do monooxygenases differ from dioxygenases in...Ch. 14.25 - What is the benzoyl-CoA pathway, and how might it...Ch. 14.25 - How is hexane oxygenated during anoxic catabolism?Ch. 14.25 - Prob. 1CRCh. 14 - The growth rate of the phototrophic purple...Ch. 14 - Prob. 2AQCh. 14 - A fatty acid such as butyrate cannot be fermented...Ch. 14 - When methane is made from CO2 (plus H2) or from...
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- You have identified a new species of a Gram-positive bacteria. You would like to screen their genome for all proteins that are covalently linked to the cell wall. You have annotated the genome, so that you identified all the promoters, operons, and genes sequences within the operons. Using these features, what would you screen for to identify a set of candidates for proteins covalently linked to the bacterial cell wall.arrow_forwardBelow is a diagram from a genomic locus of a bacterial genome. Each arrow represents a coding region, and the arrowheads indicate its orientation in the genome. The numbers are randomly assigned. Draw the following features on the diagram, and explain your rationale for each feature: 10 12 合會會會會長 6 a) Expected transcriptions, based on known properties of bacterial genes and operons. How many proteins are encoded in each of the transcripts? b) Location of promoters (include rationale) c) Location of transcriptional terminators (include rationale) d) Locations of Shine-Dalgarno sequences (include rationale)arrow_forwardSample excuse letter in school class for the reasons of headaches and dysmenorrhea caused by menstrual cyclearrow_forward
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