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 occO Proton pumps transfer electrons from the cytosol to the mitochondrial matrix as electrons are traO The chemical and electrical gradient is established between the intermembrane space and the maelectron carriers.O ATP synthase pumps electrons back to the intermembrane space as a consequence of electrochermitochondrial matrix.• Previous

Introduction ATP is synthesised in the mitochondria of a cell by a process called oxidative…

Answered: Which of the following statements about…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter7: Cellular Respiration: Harvesting Chemical Energy

Section: Chapter Questions

Problem 4TYK

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Using the answer code on the right, indicate which form of energy production is being described: 1. takes place in the mitochondrial matrix 2. produces H2O as a by-product 3. results in a rich yield of ATP 4. takes place in the cytosol 5. processes acetyl-CoA 6. takes place in the mitochondrial innermembrane cristae 7. converts glucose into two pyruvate molecules 8. uses molecular oxygen 9. accomplished by the electron transport system and ATP synthase (a) glycolysis (b) citric acid cycle (c) oxidative phosphorylation
The Relative Efficiency of ATP Synthesis in Noncyclic versus Cyclic Photophosphorylation If noncyclic photosynthetic electron transport leads to the translocation of 7 H+/2e- and cyclic photosynthetic electron transport leads to the translocation of 2 H+/e-, what is the relative photosynthetic efficiency of ATP synthesis (expressed as the number of photons absorbed per ATP synthesized) for noncyclic versus cyclic photophosphorylation? (Assume that the CF1CF0-ATP synthase yields 3 ATP/14 H+.)
Characterizing Glycolysis List the reactions of glycolysis that a. are energy consuming (under standard-stale conditions), b. are energy yielding (under standard-state conditions), c. consume ATP. d. yield ATP e. are strongly influenced by changes in concentration of substrate and product because of their molecularity. f. are at or near equilibrium in the erythrocyte (see Table 18.2).
Which of the following statements concerning oxidative phosphorylation is false? Group of answer choices: The electron transport chain generates an electrochemical gradient that drives the production of ATP. ATP synthase with fewer subunits in its c ring will produce more ATP per proton. A “loose” β subunit of ATP synthase becomes a “tight” site as it produces ATP. When the supply of NADH and QH2 (ubiquinol) decreases, ATP synthase produces more ATP.
CHOOSE THE CORRECT LETTER 1.In oxidative phosphorylation, which condition drives ATPase to produce ATP?A. low ATP concentration in the mitochondrial matrixB. increase in proton concentration at mitochondrial matrix thus a proton gradientC. increase in proton concentration at the intermembrane space of the mitochondria thus a proton gradientD. low ATP concentration in the intermembrane space of the mitochondria 2.Which of the following molecules are NOT needed to produce energy in oxidative phosphorylation?A.O2B. H2OC.FADH2D.NADH
Which of the following statements is true?a) the ATP synthase adds electrons directly to ADP to make ATP b) acetyl CoA produced in the citric acid cycle carries electrons to the electrontransport chainc) the electron transport chain pumps protons from the cytosol into the inter-membrane space of mitochondriad) carbon monoxide is an electron transport chain blocker
If decanoic acid (10 : 0) undergoes complete β-oxidation in mitochondria, how many net ATP is yielded? (NADH = 2.5 ATP; FADH2 = 1.5 ATP; Acetyl CoA = 10 ATP) Answer in number only
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
Oxidative phosphorylation generates ATP using the reducing power of [NADH, FADH2 or malate] to move electrons down a series of carriers to ultimately produce a [phosphate gradient or protons gradient] across the inner mitochondrial membrane, which is used by ATP synthase to make ATP. ATP synthase harnesses the energy stored in both [charge and concentration gradients or electostatic and van der waals interations] to achieve high energy phosphate bond synthesis. If the ion gradient across the inner membrane is dissipated by the expression of UCP1, ATP is not synthesized and [heat is generated or electron transport is blocked]. The final electron acceptor in the electron transport chain is [oxygen or carbon dioxide] with water as a product.
This UCP1 protein allows the protons (H+) of the mitochondrial intermembrane space to enter the mitochondrial matrix without going through the ATP synthase. This bypass represents a shortcut for protons and uncouples (i.e. eliminates the interrelationship between) the following two processes: The entry of protons inside the mitochondrial matrix, following their concentration gradient. The phosphorylation of ADP into ATP by the ATP synthase. It is this uncoupling that gave the protein its name: uncoupling protein 1 (UCP1). The following figure shows the location of UCP1 when it is expressed (synthesized) in the brown adipose tissues (BAT) of hibernating mammals. Question 12 Based on the UCP1 protein structure shown earlier, and based on the figure above, what type of protein is UCP1? Question 12 options: a) A primary active transporter. b) A motor protein.…
ATP production during the Electron Transport Chain is driven by which of the following? A. Movement of H+ ions across mitochondrial membranes via ATP synthase B. Movement of electrons down a gradient of charge C. Oxygen accepting H+ ions D. NADH and FADH2 donating phosphate to ADP E. Release of CO2
Which of the following statements is NOT true about the electron transport chain (ETC) and oxidative phosphorylation? A. Oxidative phosphorylation requires the enzyme complexes to be soluble in the mitochondrial matrix. B. If the proton gradient is too high, electrons will not move through the ETC. C. The movement of electrons down the ETC only happens if protons are pumped out of the mitochondrial matrix. D. Oxidative phosphorylation requires the mitochondrial intermembrane space to be more positively charged than the matrix. E. The free energy of the proton gradient can be used to create high energy bonds.

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