Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 13TYK
Which of the following statements correctly describes a
- a. The pH of the intermembrane space becomes much lower than normal.
- b. Alcohol would build up in the mitochondria.
- c. NADH supplies would be exhausted, and ATP synthesis would cease.
- d. No proton gradient would be produced, and ATP synthesis would cease.
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Students have asked these similar questions
Which of the following statements is TRUE of the electron transport chain (ETC)?
A. The movement of electrons down the ETC drives the formation of a proton (H+) gradient.
B. The movement of H+ ions through ATP synthase drives the transfer of electrons down the ETC.
C. The movement of electrons down the ETC drives the movement of ADP and phosphate through ATP synthase.
D. The movement of H+ ions across the inner membrane of the mitochondria drives the transfer of electrons down the ETC.
Which of the following statements concerning ATP synthesis is NOT true?
a.
The open conformation of the ATP synthase is for releasing ATP.
b.
The gamma subunit in the stalk responds to the flow of H+ and rotates the assembly counterclockwise and thus change the conformations of the active site to synthesize ATP.
c.
The tight conformation of the ATP synthase is for converting ADP and phosphate to ATP.
d.
The loose conformation of the ATP synthase is for binding ADP and phosphate.
e.
Ten protons are required to catalyze the rotation of the subunits so that one ATP is synthesized.
Clear my choice
Which 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 gradient
Chapter 9 Solutions
Study Guide for Campbell Biology
Ch. 9 - Fill in the following summary equation for...Ch. 9 - Fill in the appropriate terms in the following...Ch. 9 - a. In the conversion of glucose and O2 to CO2 and...Ch. 9 - a. NAD+ is called a(n) ____________________. b....Ch. 9 - Fill in the three stages of cellular respiration...Ch. 9 - Fill in the blanks in the following summary...Ch. 9 - Fill in the blanks in the following diagram of the...Ch. 9 - Label the following diagram of oxidative...Ch. 9 - Fill in the following tally for the maximum ATP...Ch. 9 - How much more ATP can be generated by aerobic...
Ch. 9 - This chapter describes how catabolic pathways...Ch. 9 - Prob. 2SYKCh. 9 - Fill in the following table to summarize...Ch. 9 - When electrons move closer to a more...Ch. 9 - In the reaction C6H12O6 + 6 O2 6 CO2 + 6 H2O, a....Ch. 9 - In which of the following conversions is the first...Ch. 9 - Some prokaryotes use anaerobic respiration, a...Ch. 9 - Which of the following reactions is incorrectly...Ch. 9 - In which organelle of a plant cell does the citric...Ch. 9 - Which of the following compounds produces the most...Ch. 9 - Aerobic eukaryotes produce CO2 as a by-product...Ch. 9 - Which of the following statements correctly...Ch. 9 - In the electron transport system, H+ ions are...Ch. 9 - When glucose is oxidized to CO2 and water,...Ch. 9 - The energy required for the chemiosmotic synthesis...Ch. 9 - Which of the following statements correctly...Ch. 9 - The citric acid cycle is best described as a. the...Ch. 9 - Fermentation produces less ATP than cellular...Ch. 9 - If muscle cells do not receive enough oxygen from...Ch. 9 - Glucose made from six radioactively labeled carbon...Ch. 9 - Glycolysis is considered one of the first...Ch. 9 - Which of the following substances produces the...Ch. 9 - Fats and proteins can be used as fuel in the cell...Ch. 9 - Which of the following statements is false...Ch. 9 - Brown fat, which is found in newborn infants and...
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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 of the following statements concerning ATP synthesis in mitochondria is FALSE? a. interruption of the flow of electrons from NADH to oxygen would decrease ATP synthesis b. making the inner mitochondrial membrane permeable to H+ would decrease ATP synthesis c. the energy liberated by the electron-transport chain is used to pump H+ ions into the IM-space d. the movement of H+ through a special channel enzyme (synthase) results in ATP synthesis e. when protons move from the matrix to the IM-space, ATP is made from ADP + Piarrow_forwardUnder conditions where cellular ATP levels are high the rate of electron transport in mitochondria slows down. This is referred to as “respiratory control” What is the mechanism behind respiratory control? A. A high pH gradient slows proton pumping, which in turn slows electron transport. B. Glucose binds to the ATP synthase complex slowing the rate of diffusion of protons across the membrane. C. Molecules of UQ within the membrane change shape, which slows their rate of diffusion. D. ATP binds to NADH dehydrogenase complex (Complex 1) slowing the rate of NADH oxidation.arrow_forwardWhich of the following statements about cellular respiration is TRUE in eukaryotes? A. For every molecule of NADH oxidized in the electron transport chain, 1 molecule of ATP is produced. B. ATP synthase harnesses the flow of protons (hydrogen ions = H+) from the mitochondrial matrix to the intermembrane space to produce ATP. C. ATP synthase transduces the flow of protons (hydrogen ions = H+) from the intermembrane space to the mitochondrial matrix into kinetic (mechanical) energy D. H2O is the final electron acceptor in the electron transport chain, being oxidized to O2 and H+. E. All of the above are truearrow_forward
- Which of the following statements is true when glucose is oxidized in the presence of O2? a. All ATP synthesis requires the presence of O2. b. O2 is the final electron acceptor. c. No water molecules are formed. d. The electron transport chain is responsible for all ATP synthesis.arrow_forwardWhich of the takes place during oxidative phosphorylation in mitochondria? a. protons are pumped from the matrix to the intermembrane space b. protons are pumped from the intermembrane space to the matrix c. electrons are pumped from the matrix to the intermembrane space d. electrons are pumped from the intermembrane space to the matrix e. NADH is pumped from the matrix to the intermembrane spacearrow_forwardWhich of the following statements concerning the location of the metabolic pathways is correct? a. All reactions of the glycolysis take place in the mitochondria. b. All reactions of the TCA cycle take place in the mitochondria. c. Some reactions of the TCA cycle take place in the cytosol, and some in mitochondria. d. Some reactions of the glycolysis take place in the cytosol, and some in mitochondria.arrow_forward
- Which of the following on the transport processes across the inner mitochondria membrane is FALSE? a. The functions of the inner mitochondria membrane shuttle proteins do not cost energy. b. The import of ADP into the mitochondria is always coupled to the export of ATP. c. In heart and liver, NADH transport to the mitochondria requires the TCA cycle enzyme malate dehydrogenase. d. In muscle, the glycerol 3-phosphate shuttle transports cytoplasmic NADH to the mitochondria as FADH .arrow_forwardPlace the following steps of cellular respiration in the correct order by numbering them from 1 to 4. a. The Krebs cycle produces the energy carriers NADH, FADH2, and ATP. b. If oxygen levels are adequate, pyruvate is transported into the mitochondrion. If oxygen levels are very low, fermentation proceeds. c. Glucose is broken down to produce ATP and NADH. d. An electron transport chain produces ATP from ADP.arrow_forwardDuring oxidative phosphorylation, the proton motive force that is generated by electron transport is used to: a. Generate the substrates (ADP and Pi) for the ATP synthase. b. Create a pore in the inner mitochondrial membrane. c. Oxidize NADH to NAD+. d. Induce a conformational change in the ATP synthase.arrow_forward
- Which of the following statements is true? A. The citric acid cycle occurs in the mitochondria matrix B. The citric acid cycle occurs in the cytosol C. Electron transport chain and ATP synthase are in the cytosol D. Oxidative phosphorylation occurs in the mitochondria matrixarrow_forwardThe electrons carried by NADH and FADH2 can be a. pumped into the intermembrane space. b. transferred to the ATP synthase. c. moved between proteins in the inner membrane of the mitochondrion. d. transported into the matrix of the mitochondrionarrow_forwardchoose the description below that best completes the statement " oxidative phosphorylation is the process in mitochondria by which a. electrons reduce O2 to H2O and this causes ATP to mbe made b.glycolysis produces more ATP than is needed to activate its pathway. c. oxygen is used to cause phosphorylation of biological molecules. d. synthesis of ATP is dependent on passage of electrons through the electron transport chainarrow_forward
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