The energy from e… Show more How is the energy used to make ATP via the electron transport chain generated? A) The energy from electrons bound to reduced coenzymes is used to create a steep electrochemical gradient. B) Electrons bound to NADH are used to generate a H + ion gradient across the inner mitochondrial membrane. C) Electrons bound to FADH2 are used to generate a proton gradient across the inner mitochondrial membrane. D) Electrons bound to NADH are used to generate a proton gradient across the inner mitochondrial membrane. E) All of these are correct • Show less

The energy from e… Show more How is the energy used to make ATP via the electron transport chain generated? A) The energy from electrons bound to reduced coenzymes is used to create a steep electrochemical gradient. B) Electrons bound to NADH are used to generate a H + ion gradient across the inner mitochondrial membrane. C) Electrons bound to FADH2 are used to generate a proton gradient across the inner mitochondrial membrane. D) Electrons bound to NADH are used to generate a proton gradient across the inner mitochondrial membrane. E) All of these are correct • Show less

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter2: Cell Physiology

Section: Chapter Questions

Problem 10RE: Using the answer code on the right, indicate which form of energy production is being described: 1....

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Similar questions

Which of the following statements is true? A. The NADH dehydrogenase complex can pump more protons than can the cytochrome b-c1 complex. B. The pH in the mitochondrial matrix is higher than the pH in the intermembrane space. C. The proton concentration gradient and the membrane potential across the inner mitochondrial membrane tend to work against each other in driving protons from the intermembrane space into the matrix. D. The difference in proton concentration across the inner mitochondrial membrane has a much larger effect than the membrane potential on the total proton-motive force.
in one of the reactions in the electron transport chain, complex I transfer electrons to coenzyme Q. which molecule is reduced and which is oxidized in this reaction? a. complex I is reduced b/c it loses electrons, and Q is oxidized b/c it gains electrons b. complex I is oxidized b/c it loses electrons, and Q is reduced b/c it gains electrons c. complex I is reduced b/c it gains electrons, and Q is oxidized b/c it loses electrons d. complex 1 and Q are both oxidized b/c elections are moved from one molecule to the other
Draw a simple sketch illustrating an inner mitochondrial membrane that is actively involved in chemiosmosis and label the two compartments it separates. Add the ATP synthase complex, indicate the proton gradient, and specify in which compartment ATP is synthesized.
In a mixture of NAD+, NADH, ubiquinone, and ubiquinol, which compound will be oxidized? Which will be reduced?
We 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.
In the Electron Transport Chain:(a). Upon the transfers, what is the final recipient of these electrons?(b). What is the compound obtained upon the completion of electron transportation?(c). What causes the changes in pH between the inner mitochondrial membrane during the electron transfer?
What would be the effect on ATP production of decreasing the pH inside the mitochondrial matrix? Explain
Which of the following statements is MOST ACCURATE? A. The oxidation of NADH in the mitochondrial matrix results in the transfer of 1 electron to the electron transport chain. B. The reduction of NADH in the mitochondrial matrix results in the transfer of 1 electron to the electron transport chain. C. The reduction of NADH in the mitochondrial matrix results in the transfer of 2 electrons to the electron transport chain. D. The oxidation of NADH in the cytoplasm results in the transfer of 1 electron to the electron transport chain. E. The oxidation of NADH in the mitochondrial matrix results in the transfer of 2 electrons to the electron transport chain.
What would decrease the number of ATP molecules generated per NADH molecule in the electron transport chain ?
Which of the following statements concerning the complete oxidation of FADH2 in the electron transport chain is NOT true? a. In the final step, electrons from cytochrome c to O2 reducing it to H2O in complex IV, and four protons are transported from the intermembrane space to the matrix. b. In the first step, electrons from FADH2 are transferred in complex II to ubiquinone, which does not transport any proton across the inner mitochondrion membrane. c. In the second step, complex III transfers the electrons from ubiquinone to cytochrome c, and four protons are transported from the matrix to the intermembrane space. d. The complete oxidation of FADH2 causes transfer of 6 protons and yields two ATP.
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 above
Where is ATP produced by oxidative phosphorylation? (where is it located immediately after the moment of synthesis) Group of answer choices the mitochondrial matrix the cytoplasm the intermembrane space the inner mitochondrial membrane Which of the following most readily donates electrons? (strongest reducing agent) Group of answer choices NADH NAD+ Ubiquinone lactate Protons first enter ATP synthase through which subunit? Group of answer choices β c γ a