Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 14.1, Problem 2TQ
Summary Introduction
To review:
The acquirement of energy from succinate as an electron donor and nitrate as an electron acceptor.
Introduction:
Succinate is the important intermediate structure in the
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A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules.
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A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules.
What is the electron donor for this system?
Chapter 14 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 14.1 - Prob. 1TQCh. 14.1 - Prob. 2TQCh. 14.2 - Prob. 1TQCh. 14.2 - Prob. 2TQCh. 14.2 - Prob. 3TQCh. 14.3 - Prob. 1TQCh. 14.3 - Prob. 2TQCh. 14.3 - Prob. 3TQCh. 14.4 - Prob. 1TQCh. 14.5 - Prob. 1TQ
Ch. 14.5 - Prob. 2TQCh. 14.6 - Prob. 1TQCh. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - Prob. 11RQCh. 14 - Prob. 1TQCh. 14 - Prob. 2TQCh. 14 - Prob. 3TQCh. 14 - Prob. 4TQ
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- Why is reverse electron flow unnecessary in H2 bacteria thatcontain two hydrogenases?arrow_forwardWhen TSIA agar is inoculated with Salmonella typhimurium, the bacteria are growing in the butt of the tube and making ATP by cellular respiration. What type of cellular respiration is occurring and what final electron acceptor is being utilized?arrow_forwardif a bacterium lacks cytochrome C oxidase, does that make the bacterium an anaerobe? Explain?arrow_forward
- In anaerobic respiration, what will happen if a bacterium uses nitrates as the terminal electron acceptors? nitrogenlaxation nitrification denitrification both nitrogen fixation and nitrificationarrow_forwardA chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. How does this organism make NADH?arrow_forwardWould an obligate anaerobe or an obligate aerobe be more likely to produce catalase? Why?arrow_forward
- When resources are limited for a bacterium, why would the bacterium be willing to spend energy to group translocate glucose?arrow_forwardIf two cultures of a facultative anaerobe were grown under identical conditions except that one was exposed to oxygen and the other was completely deprived of oxygen, what differences would you expect to see between the two cultures? (What metabolic pathway would be occurring in each? Why?)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
- Clostridium tetani is a common soil bacterium and causes tetanus. Would you expect C. tetani to possess the enzyme catalase? Explain.arrow_forwardHow might the bacterial growth curve change if a facultative anaerobe was first monitored for growth when grown in the presence of an O2 environment and, during its log (exponential) growth phase, the organism was suddenly placed in an anaerobic environment?arrow_forwardHow would you isolate a thermophilic chemolithotroph that uses sulfur compounds as a source of energy and electrons? What changes in the incubation system would be needed to isolate bacteria using sulfur compounds in anaerobic respiration? How would you tell which process is taking place through an analysis of the sulfur molecules present in the spent medium?arrow_forward
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