The energy provided by the mitochondrial proton gradient is used to drive the production of ATP by ATP synthase. the transport of pyruvate from the inner membrane space into the mitochondrial matrix. the transport of ATP from the mitochondrial matrix to the inner membrane space. the transport of ADP from the inner membrane spance into the mitochondrial matrix. all of the above

The energy provided by the mitochondrial proton gradient is used to drive the production of ATP by ATP synthase. the transport of pyruvate from the inner membrane space into the mitochondrial matrix. the transport of ATP from the mitochondrial matrix to the inner membrane space. the transport of ADP from the inner membrane spance into the mitochondrial matrix. all of the above

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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The inner mitochondrial membrane normally O is virtually impermeable to hydrogen ions (protons). encompasses the F1 subunit of the ATP synthase. is permeable to NADH and NAD+. contains enzymes responsible for two of the chemical reactions that take place as part of glycolysis.
ADP and inorganic phosphate are provided for oxidative phosphorylation via an: ADP-ATP antiport and a proton-phosphate symport in the inner mitochondrial membrane. ADP-ATP antiport and a proton-phosphate symport in the outer mitochondrial membrane. O ADP-ATP antiport in the inner mitochondrial membrane and a phosphate uniport in the mitochondrial intermembrane space. ADP-phosphate symport in the inner mitochondrial membrane.
Which of the following is a direct output of the mitochondrial electron transport chain? NADH CO2 H2O pyruvate
In normal mitochondria, which of the following is true for the rate of NADH consumption (oxidation)? Select all that apply Be very low if the ATP synthase is inhibited, but increase when an uncoupler (equalizer of H+ concentration) is added decrease if mitochondrial ADP is depleted Increase in active muscle and decrease in inactive muscle decrease when cyanide is added to prevent electron transfer through the electron transport chain
The inner mitochondrial membrane is damaged, and it becomes increasingly permeable to hydrogen ions. Which of the following statements IS NOT true. The H+ gradient stored in the matrix created by the electron transport chain dissipates when H+ ions diffuse into the inner mitochondrial membrane space. Complex I, II, IIl and IV are still able to pump H+ into the inner mitochondrial membrane space due to the oxidation of NADH and FADH2. The H+ ions pumped into the inner mitochondrial membrane space are not efficiently used by ATP synthase to generate ATP. As a result, the production of ATP for every molecule of pyruvate that enters the mitochondrion is reduced. All of these statements are true.
Which of the following statements about oxidative phosphorylation is correct? O H+ ions are transferred from Complex I or Complex II to ATP synthase where ATP production occ O Proton pumps transfer electrons from the cytosol to the mitochondrial matrix as electrons are tra O The chemical and electrical gradient is established between the intermembrane space and the ma electron carriers. O ATP synthase pumps electrons back to the intermembrane space as a consequence of electrocher mitochondrial matrix. • Previous
Place the cellular respiration pathways in their correct locations. Oxidative Breakdown of pyruvate Glycolysis Citric acid cycle phosphorylafion Outer mhochondrial membrane Cysel 2 pnate Mitochendrial Inner miochondial membrane 2 LAD 2ADE 2 pte AD 2AOH acetyl 2CO, + 2 acetyl and FADH, via the ectron transport chain genetes an H aradiest that is sod o mute mone ATP via the ATP syathase. O, is consumed to 4 CO 2 acetyl +2 ATP +2 ATP +30-34 ATP Via substratelewl phosphorylaion Va substrate-Ievel phosphorylation Via chemioumosis
The simultaneous movement of ATP and ADP in opposite directions across the inner mitochondrial membrane, using the proton gradient established by electron transport for energy, is an example of: antiport movement uniport movement symport movement all of the above none of the above
H+ flow down their gradient from the intermembrane space into the mitochondrial matrix through _____________, the smallest known rotary motor, to make _____________. the electron transport chain; ATP ATP synthase; ATP the electron transport chain; NADH ATP synthase; O2
When pyruvate diffuses intothe mitochondria, what chemical product does it get converted to? ATP pyruvic acid acetyl CoA NADH
When the carrying molecule NADH gets to NADH dehydrogenase, a hydrogen ion, also known as a proton, moves across the inner mitochondrial membrane while the are passed to ubiquitin. Ubiquitin takes to cytochrome b-c1 which pumps those more protons across the membrane. Then the are transfered to cytochrome oxydase that takes O₂ and hydrogen ions to make H₂O and pumps more protons across the membrane. This build up of protons between the two mitochondrial membranes results in a gradient that powers ATP synthase to attach phosphates to ADP., making ATP. (Note: all blanks have the same word in them.)
A toxin that inhibits the establishment of the proton gradient across the inner mitochondrial membrane would cause the following result: Substrate-level phosphorylation would be inhibited. NADH would be oxidized. Fermentation could not occur. ATP synthase would be unable to produce ATP. Pyruvate would be unable to enter the TCA cycle.