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 14.3, Problem 3TQ
Summary Introduction
To review:
The growth of E. coli in the presence of an uncoupler that removes the proton potential supporting ATP synthesis.
Introduction:
Uncoupler is an agent that separates connected or combined
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If a cell grows on a minimal media and it is made up of phosphate as a source of carbon and energy, when would it go through the metabolic cycle?
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Explain what electron acceptors are in lactic acid fermentation or ethanol fermentation.
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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- How can a fermentation that yields insufficient free energy tomake an ATP still support growth?arrow_forwardIs malonate may decrease or increase the efficiency of cells to produce ATP?arrow_forwardBesides the final product, what other important difference is there between the fermentation pathways of E. coli? Or, in other words, for what purpose does the cell activate the fermentative pathways when there is lack of oxygen?arrow_forward
- What are two different ways that cytochrome oxidase contributes to the proton gradient?arrow_forwardIf nitrate is used as the terminal electron acceptor in the electron transport system of a bacterium,how many ATPs could be synthesized?arrow_forwardEach of the following complexes pumps protons out of the matrix to generate the proton gradient except A) complex I. B) complex II. C) complex III. D) complex IV. E) coenzyme Qarrow_forward
- In what situations / situations does an organism resort to lactic acid fermentation? Explain. What are the benefits of lactic acid fermentation in industrial application? Write.arrow_forwardDefine the term substrate-level phosphorylation:How does it differ from oxidative phosphorylation?What compound(s) do fermentative bacteria need tosynthesize in order to make ATP by substrate-levelphosphorylation?arrow_forwardIn a Lineweaver-Burk graph, the place where the line crosses the Y-axis represents: a) Km b) Vmax c) 1/Km d) 1/Vmax Which coenzyme is most often used in dehydrogenation reactions of the type –CH2CH2- = -CH=CH- ? a) NAD b) FAD c) NADP d) FMN Which one of these transports fructose? A) GLUT-2 b) GLUT-3 c) GLUT-4 d) GLUT-5 The pyruvate dehydrogenase complex converts pyruvate to which molecule? A) oxaloacetate b) glycogen c) acetyl-CoA d) citrate The pyruvate dehydrogenase complex produces how many ATP molecules at the substrate level? A) 0 b) 1 c) 3 d) 4 The pyruvate dehydrogenase complex produces how many ATP molecules indirectly via oxidative phosphorylation per glucose molecule? A) 1 b) 3 c) 5 d) over 30arrow_forward
- As you know Penicillin is produced biosynthetically from cysteine and valine. If thebiosynthetic pathway could accept different amino acids, why do you think penicillin analogsare not formed during the fermentation process, with different amino acids is used?arrow_forwardDesign an experiment for measuring the activity of sulfuroxidizing bacteria in soil. If only certain species of the sulfuroxidizers present were metabolically active, how couldyou tell this? How would you prove that your activitymeasurement was due to biological activity?arrow_forwardWhy is lactose not fermented by yeast?arrow_forward
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