Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 7, Problem 2VCQ
Figure 7.12 Cyanide inhibits cytochrome c oxidase, a component of the electron transport chain. If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or
decrease? What effect would cyanide have on ATP synthesis?
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As electrons move from Complex I & II to Complex IV, H+ ions accumulate in the intermembrane space. Describe how these ions are then used to generate ATP using the following terms: ATP synthase, ADP, ATP, electrochemical gradient, chemiosmosis, intermembrane space, matrix.
Which electron carrier would have the greatest negative impact on ATP production during oxidative phosphorylation if its production was inhibited?
answer choices
A.) Water
B.) FADH2
C.) Oxygen
D.) NADH
Which of the following statements concerning ATP is true? a. The free energy value for the hydrolysis of ATP is nearly the same for ADP. b. The free energy value for the hydrolysis of ATP is greater than that for ADP. c. ATP hydrolysis is more likely at pH 5 than at pH 7. d. One mole of glycerate-1,3-bisphosphate can phosphorylate one mole of AMP to yield ATP.
Chapter 7 Solutions
Biology 2e
Ch. 7 - Figure 7.11 Dinitrophenol (DNP) is an "uncoupler"...Ch. 7 - Figure 7.12 Cyanide inhibits cytochrome c oxidase,...Ch. 7 - (Figure 7.14) Tremetol, a metabolic poison found...Ch. 7 - The energy currency used by cells is ATP ADP AMP...Ch. 7 - A reducing chemical reaction. reduces the compound...Ch. 7 - During the second half of glycolysis, what occurs?...Ch. 7 - What is removed from pyruvate during its...Ch. 7 - What do the electrons added to NAD+ do? They...Ch. 7 - GTP or ATP is produced during the conversion of...Ch. 7 - How many NADU molecules are produced on each turn...
Ch. 7 - What compound receives elections from NADH? FMN...Ch. 7 - Chemiosmosis involves. the movement of electrons...Ch. 7 - Which of the following fermentation methods can...Ch. 7 - A major connection for sugars in glycolysis is...Ch. 7 - Beta-oxidation is. the breakdown of sugars the...Ch. 7 - The effect of high levels of ADP is to__inv __...Ch. 7 - The control of which enzyme exerts the most...Ch. 7 - Why is it beneficial for cells to use ATP rather...Ch. 7 - Nearly all organisms on Earth carry out some form...Ch. 7 - Because they lose their mitochondria during...Ch. 7 - What is the primary difference between a circular...Ch. 7 - How do the roles of ubiquinone and cytochrome c...Ch. 7 - What accounts for the different number of ATP...Ch. 7 - What is the primary difference between...Ch. 7 - Would you describe metabolic pathways as...Ch. 7 - How does citrate from the citric acid cycle affect...Ch. 7 - Why might negative feedback mechanisms be more...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which chemical equation represents the breakdown of organic carbon (into inorganic form) thattakes place during glycolysis, the Krebs cycle, and electron transport (aerobic respiration)? A. C6H12O6 + C6H12O6 C12H22O11 + H2OB. 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2OC. C12H22O11 + H2O C6H12O6 + C6H12O6D. C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2OE. all of the abovearrow_forwardWhen ATP synthase converts ADP and Inorganic phosphate into ATP what type of reaction is this.arrow_forwardHow many net ATPs would be produced if the following fatty acid is completely oxidized intocarbon dioxides and water? 94.5 96.5 98 98.5 108arrow_forward
- At how many protein complex sites in the electron transport chain does proton pumping occur? a. 1 b. 2 c. 3 d. 4arrow_forwardCHOOSE THE CORRECT LETTER Which of the following conditions promote the synthesis of ATP through the electron transport chain?A.proton pump from outer mitochondrial membrane to inner mitochondrial membraneB. proton pump from matrix to inner mitochondrial membraneC. proton pump from inner mitochondrial membrane to outer mitochondrial membraneD. proton pump from inner mitochondrial membrane to matrixarrow_forwardWhich of the following molecules remains oxidized when the electron transport inhibitor antimycin A is added to a suspension of actively respiring mitochondria? a. cytochrome c b. NAD c. cytochrome a d. UQarrow_forward
- Place the following components of the electron-transport chain in their proper order: (a) cytochrome c (b) Q-cytochrome coxidoreductase (c) NADH-Q reductase (d) cytochrome c oxidase (e) ubiquinonearrow_forwardWhich of the following statements describes the end step for the electron transport chain? A. H+ ions flow down the gradient to generate ATP B. electrons are transferred to NADH and FADH2 for chemiosmosis C. electrons are transferred to oxygen, causing it to split and take up H+ ions, which form water D. H+ are pumped across the inner membrane of mitochondria to establish an electrochemical gradientarrow_forwardWhy does the hydrolysis of ATP to ADP involve the release of energy?arrow_forward
- Why are oxygen molecules important in oxidative phosphorylation? What are the consequences if they are absent for a short period of time in tissues that routinely use oxidative phosphorylation to produce useful energy?arrow_forwardAre electron transport and oxidative phosphorylation the same process? Why or why not?arrow_forwardFigure 7.11 Dinitrophenol (DNP) is an "uncoupler" that makes the inner mitochondrial membrane "leaky" to protons. It was used until 1938 as a weight-loss drug. What effect would you expect DNP to have on the change in pH across the inner mitochondrial membrane? Why do you think this might be an effective weight-loss drug?arrow_forward
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