Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 11, Problem 2CT
Summary Introduction
To review:
The difference between the electron donors and acceptors in terms of
Introduction:
Chemoorganotrophs are the group of bacteriathatare able to obtain energy by oxidizing organic compounds like glucose and uses sulfur as an electron acceptor. However, chemolithotrophs are the group of organisms that are able to metabolize inorganic materials as their source of energy and uses sulfur as an electron donor.
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Chapter 11 Solutions
Nester's Microbiology: A Human Perspective
Ch. 11 -
1. What kind of bacteria might compose the...Ch. 11 - What kind of bacterium might be responsible for...Ch. 11 -
3. Give three examples of energy sources used by...Ch. 11 - Name two genera of endospore-forming bacteria. How...Ch. 11 - How is the life cycle of Epulopiscium species...Ch. 11 -
6. What unique motility structure characterizes...Ch. 11 - In what way does the metabolism of Streptococcus...Ch. 11 - How have species of Streptomyces contributed to...Ch. 11 - What characteristics of Azotobacter species...Ch. 11 - Compare and contrast the relationships of...
Ch. 11 - A catalase-negative colony growing on a plate that...Ch. 11 - All of the following genera are spirochetes except...Ch. 11 - If you examined the acidic runoff from a coal...Ch. 11 -
4. The dormant forms of which of the following...Ch. 11 -
5. If you read that coliforms had been found in a...Ch. 11 - Which of the following genera preys on other...Ch. 11 -
7. All of the following genera are obligate...Ch. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 -
10. Thermoplasma and Picrophilus grow best in...Ch. 11 - Prob. 1ACh. 11 - A friend who has lakefront property and cherishes...Ch. 11 - Soil often goes through periods of extreme dryness...Ch. 11 - Prob. 2CT
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- In the mitochondrial ETC, ________ acts as the ___________. Select one: a. water, final e- acceptor b. water, electron donor (provides e- to ETC) c. oxygen, final e- acceptor d. oxygen, electron donor e. NAD+, final e- acceptorarrow_forwardWe know that atmospheric oxygen (O2) can be a final electron acceptor at the end of the electron transport chain in aerobic respiration. Name 2 other inorganic molecules that can be final electron acceptors at the end of the electron transport chain in anaerobic respiration. Name 1 organic molecule that can be a final electron acceptor in fermentation.arrow_forwardNitrogen fixation is the reaction of: conversion of gaseous N2 into a biologically useful form of nitrogen (NH3). conversion of gaseous NH3 into a biologically useful form of nitrogen (N2). reduction of nitrogen to a peptide bond. fixing gaseous N2 into an unreactive form. electron transfer to ATP.arrow_forward
- Reverse electron transport makes unique ecological niches available to microorganisms. Explain this statementarrow_forwardWhich one of the following reactions is an example of nitrogen fixation? A)N2O5(g) NO3(g) + NO2(g) B)N2(g) + O2(g) 2NO(g) C)3NO2(g) + H2O(l) 2HNO3(aq) + NO(g) D)2NO(g) + O2(g) 2NO2(g) E)2NH3(g) 3H2(aq) + N2(g)arrow_forwardAmong others in an anaerobic digester, sulfate-reducing bacteria compete with methane-forming bacteria for substrate and electron acceptor. What parameters influence which of the two bacterial groups win the competition? A.Only the ORP B. Only the substrate-to-sulfate ratio C. The ORP and the substrate to sulfate ratio.arrow_forward
- Explain why the anammox reaction is important to the global flux of nitrogenarrow_forwardWhy is nitrogen a limiting nutrient for so many organisms, and what is it used for? (consider the four types of organic molecules)arrow_forwardThe electron carriers NAD+ and FAD— accept electrons from acidic metabolites. accept electrons from reduced metabolites. accept electrons from oxidized metabolites. donate electrons to reduced metabolites. donate electrons to basic metabolites.arrow_forward
- Rotenone is a broad-spectrum insecticide and that inhibits the electron transport chain. Why might it be toxic tohumans?arrow_forwardUse the multiple choice questions to identify what components of the redox loop would have to be in each numbered box for this organism to be able to produce ATP using this system. Do not worry about stoichiometry. a) What should be in box 1? MQ MQH2 Electron H+ b) What should be in box 2? MQ MQH2 Electron H+ c) What should be in box 3? MQ MQH2 Electron H+ d) What should be in box 4? MQ MQH2 Electron H+ e) What should be in box 5? MQ MQH2 Electron H+ f) What should be in box 6? MQ MQH2 Electron H+ g) What should be in box 7? MQ MQH2 Electron H+ h) What should be in box 8? MQ MQH2 Electron H+ i) Which boxes in the diagram directly result in increasing the pH gradient? (select all that apply) 1 2 3 4 5 6 7 8arrow_forwardWhich is the autotrophic group responsible for the production of most part of the molecular oxygen of earth?arrow_forward
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