coSQuestion #6. On the right is a schematic showing the structure of complex V(ATP Synthase). The various subunits are labeled.6A Label the figure to show the location of the mitochondrial matrixαβλαβY6B On the figure indicate the direction of proton flow across the membrane inthe direction of ATP synthesis. Make sure to specifically indicate through whichportion of the complex the protons move.EAb, aa cc cccInner membrane6C List the specific subunits in the complex that rotate as protons flow throughthe complex (select from: a, b2, c, a, ß, y, 8, ɛ)6D Rotation occurs in 120° steps. Briefly explain why this is consistent with thebind-and-change mechanism that produces ATP. In your answer, make sure to indicate the number of active sites in thecomplex and how rotation alters their ability to promote catalysis.

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d Question # 6. On the right is a schematic showing the structure of complex V (ATP Synthase). The various subunits are labeled. 6A Label the figure to show the location of the mitochondrial matrix a ßaß Y 6B On the figure indicate the direction of proton flow across the membrane in the direction of ATP synthesis. Make sure to specifically indicate through which portion of the complex the protons move. E a cc ccc Inner membrane 6C List the specific subunits in the complex that rotate as protons flow through the complex (select from: a, b2, C, a, ß, y, 8, e) 6D Rotation occurs in 120° steps. Briefly explain why this is consistent with the bind-and-change mechanism that produces ATP. In your answer, make sure to indicate the number of active sites in the complex and how rotation alters their ability to promote catalysis. ba

d Question # 6. On the right is a schematic showing the structure of complex V (ATP Synthase). The various subunits are labeled. 6A Label the figure to show the location of the mitochondrial matrix a ßaß Y 6B On the figure indicate the direction of proton flow across the membrane in the direction of ATP synthesis. Make sure to specifically indicate through which portion of the complex the protons move. E a cc ccc Inner membrane 6C List the specific subunits in the complex that rotate as protons flow through the complex (select from: a, b2, C, a, ß, y, 8, e) 6D Rotation occurs in 120° steps. Briefly explain why this is consistent with the bind-and-change mechanism that produces ATP. In your answer, make sure to indicate the number of active sites in the complex and how rotation alters their ability to promote catalysis. ba

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 10TYK: In the 1950s, a diet pill that had the effect of poisoning ATP synthase was tried. The person taking...

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pH and in the Chloroplast Proton-Motive Force (Integrates with Chapter 20.) In mitochondria, the membrane potential () contributes relatively more to p (proton-motive force) than does the pH gradient (pH). The reverse is true in chloroplasts. Why do you suppose that the proton-motive force in chloroplasts can depend more on pH than mitochondria can? Why is () less in chloroplasts than in mitochondria?
What distinguishes the four complexes of the mitochondrial electron transfer system?
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
Match the term with the best description. _____ mitochondrial matrix a. needed for glycolysis _____ pyruvate b. inner space _____ NAD+ c. makes many ATP _____ mitochondrion d. product of glycolysis _____ NADH e. reduced coenzyme _____ anaerobic f. no oxygen required
In the 1950s, a diet pill that had the effect of poisoning ATP synthase was tried. The person taking it could not use glucose and lost weightand ultimately his or her life. Today, we know that the immediate effect of poisoning ATP synthase is: a. ATP would not be made in the electron transfer system. b. H+ movement across the inner mitochondrial membranewould increase. c. more than 32 ATP could be produced from a molecule ofglucose. d. ADP would be united with phosphate more readily in themitochondria. e. ATP would react with oxygen.
In phase II of ETS diagram and label the ATP synthase along with the inner mitochondrial membrane it is sitting in. Your diagram must show the intermembrane space and the mitochondrial matrix. Describe how it works step by step
Draw and label a lipid bilayer containing the large mitochondrial trans-membrane protein complexes representing complex I, II, III, and IV, and ATP Synthase. Make two more of these drawings. Label the first one mitochondrial electron source and using a different ink color, indicate the source(s) of electrons. Label the second mitochondrial energy source, and indicate the source of energy driving the electron transport chain. In the third, label the mitochondrial electron acceptor in its proper position. In this third drawing, also include ATP synthase (in its correct orientation-the spherical part is on the opposite side of the membrane as the H+ reservoir). Label your diagrams with the correct names for the membranes, ATP synthase, and to show where the protons (H+) are pumped to drive ATP synthesis.
Draw and label a lipid bilayer containing the large mitochondrial trans-membrane protein complexes representing complex I, II, III, and IV, and ATP Synthase. Label your diagrams with the correct names for the membranes, Make two more of these drawings. Label the first one mitochondrial electron source and using a different ink color, indicate the source(s) of electrons. Label the second mitochondrial energy source, and indicate the source of energy driving the electron transport chain. In the third, label the mitochondrial electron acceptor in its proper position. Also include ATP synthase (in its correct orientation-the spherical part is on the opposite side of the membrane as the H+ reservoir). Use a different color of ink to show where the protons (H+) are pumped to drive ATP synthesis. also indicate where ATP is generated and were the power is stored to generate ATP. NOW, do the same thing with chloroplasts. Draw and label a lipid bilayer containing the large photosynthetic…
Fill in the bold using the table. Because the inner mitochondrial membrane is impermeable to L, when there is an excess of mitochondrial L, it converts to M using a TCA condensation reaction, M crosses to the cytosol using a designated transport system. In the cytosol, M reconverts to L and oxaloacetate. Oxaloacetate is subsequently converted to malate with simultaneous production of N, a prerequisite cofactor for the glycolysis pathway. This reaction is then followed by conversion of N to pyruvate which produces O, a prerequisite cofactor for the fatty acid synthesis pathway. L M N O A. ATP pyruvate malate NADPH B. ATP citrate ATP NAD+ C. acetyl CoA pyruvate NAD+ NADH D. acetyl CoA citrate NAD+ NADPH E. glucose pyruvate malate NADP+
DRAW IT The graph here showsthe pH difference across theinner mitochondrial membraneover time in an actively respiringcell. At the time indicated by thevertical arrow, a metabolic poisonis added that specifically andcompletely inhibits all function ofmitochondrial ATP synthase. Drawwhat you would expect to see forthe rest of the graphed line, andexplain your graph.
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.…
Mitochondrial oxidation of fatty acids is a major source of ATP, yet fatty acids can be oxidized elsewhere. What organelle, besides the mitochondrion, can oxidize fatty acids? What is the fundamental difference between oxidation oc- curring in this organelle and mitochondrial oxidation?