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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Textbook Question
Chapter 6, Problem 1CT
A student argued that aerobic and anaerobic respiration should produce the same amount of ATP. He reasoned that they both use basically the same process; only the terminal electron acceptor is different. What is the primary error in this student's argument?
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Chapter 6 Solutions
Nester's Microbiology: A Human Perspective
Ch. 6 - Explain the difference between catabolism and...Ch. 6 - How does ATP serve as a carrier of free energy?Ch. 6 -
3. How do enzymes catalyze chemical reactions?
Ch. 6 - Explain how precursor molecules are involved in...Ch. 6 -
5. How do cells regulate enzyme activity?
Ch. 6 - Why do the electrons carried by FADH2 result in...Ch. 6 -
7. Name three food products produced with the aid...Ch. 6 - In photosynthesis, what is encompassed by the term...Ch. 6 - Unlike the cyanobacteria, the anoxygenic...Ch. 6 - What is the role of transamination in amino acid...
Ch. 6 - Which of these factors do does not affect enzyme...Ch. 6 - Which of the following statements is false?...Ch. 6 - Based on the name, NADH dehydrogenase is a) a...Ch. 6 - What is the end product of glycolysis? a) Glucose...Ch. 6 -
5. The central metabolic pathway(s) is/are
a)...Ch. 6 - Which of these pathways gives a cell the potential...Ch. 6 - In fermentation, the terminal electron acceptor is...Ch. 6 -
8. In the process of oxidative phosphorylation,...Ch. 6 - If a bacterium loses the ability to produce FADH2,...Ch. 6 - Degradation of fats as an energy source involves...Ch. 6 -
1. A worker in a cheese-making facility argues...Ch. 6 -
2. Scientists working with DNA in vitro often...Ch. 6 -
1. A student argued that aerobic and anaerobic...Ch. 6 - Chemolithotrophs near hydrothermal vents support a...
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- In eukaryotes, the net ATP produced from glycolysis to aerobic respiration is 36 while in prokaryotes is 38. Explain why.arrow_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_forwardModels such as the one shown in the illustration below are often used to represent the electron transport chain. Explain why this model is well-suited to this concept. Explain why metabolic processes such as cellular respiration and photosynthesis require a multi-stage release of energy, rather than a one-step reactionarrow_forward
- In aerobic respiration, why are electrons moved from organic macromolecules to electron carriers like NAD+. More specifically why is this middle man needed. Why can't the organic macromolecules transport the electron itself?arrow_forwardPhotosynthesis and aerobic cellular respiration both rely on electron transport chains to generate ATP. Which of the following does not correctly identify similarities and differences in the ETCs of these processes? a) Electrons delivered to the ETC are used to generate a proton gradient across the membrane b) In photosynthesis, the facilitated diffusion of protons across the membrane generates ATP and glucose molecules; in cellular respiration, this process generates ATP c) In photosynthesis, electrons are delivered to the ETC by NADPH; in cellular respiration, electrons are delivered to the ETC by NADH and FADH2 d) In prokaryotes, active transport moves protons across the cell’s plasma membrane during photosynthesis and cellular respirationarrow_forwardWhy are electron carriers (NAD+/NADH and FAD/FADH2) so important in the process of cellular respiration? A)NADH and FADH2 are major components of the ETC, so without them, there would be no ETC in the cell. B)They deliver electrons to the ETC, which in turn sets up chemiosmosis, where most of the ATP is generated. C)They separate the electrons from the protons so that the protons can be moved out of the mitochondrion. D)The electrons that they carry are able to directly phosphorylate ADP in order to generate the bulk of ATP in the cell. E) They transport protons across the mitochondrial membrane. 14.arrow_forward
- How is a “committed step” defined in the context of a metabolic pathway and why are they important? Which steps and/or enzymes are involved in the committed steps in the Krebs Cycle? What are the possible implications of these steps were deregulated?arrow_forwardAs protons (H+) pass through the mitochondria inner membrane… Question 10 options: a) Protons follow their concentration gradient. b) All the potential energy contained in the proton gradient is converted into ATP. c) Some of the potential energy contained in the proton gradient is converted into ATP and some is released as heat (i.e., unusable energy). d) Protons go up in potential energy level and ∆G > 0. e) A and Carrow_forwardIn nature, there are some organisms that are unable to perform aerobic respiration in the presence of oxygen. What could be the possible reason(s) behind this phenomenon?arrow_forward
- What is the direct mechanism of ATP synthesis during the electron transport phase of cellular respiration? (what is the potential energy source that drives ATP production?) b) Why is oxygen needed for this phase? c) What is the role of ATP synthasearrow_forwardA newly identified bacterium is unable to synthesize ubiquinone. A mobile electron carrier called CXC3 is used as a substitute. From the information provided in the table, calculate the delta G knot prime and the Keq value at 298 K for the redox reaction that occurs in this bacterium’s electron transport chain. Explain the impact that using CXC 3 instead of ubiquinol will have on ATP production in the cell. How might this cell adapt to this situation?arrow_forwardAerobic respiration, used by the mitochondria of eukaryotic cells, is best represented by which of the following balanced equations? 6CO2 + 12H2S g C6H12O6 + 6S2 + 6H2O C6H12O6 + 6O2 + 6H2O g 6CO2 + 12H2O C12H22O11 + H2O g C6H12O6 + C6H12O6 6CO2 + 12H2O g C6H12O6 + 6O2 + 6H2O C6H12O6 + C6H12O6 g C12H22O11 + H2Oarrow_forward
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Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY