Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 6TYU
When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?
(A) The pH of the matrix increases.
(B) ATP synthase pumps protons by active transport.
(C) The electrons gain free energy.
(D) NAD+ is oxidized .
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When electrons flow along the electron transport chains ofmitochondria, which of the following changes occurs?(A) The pH of the matrix increases.(B) ATP synthase pumps protons by active transport.(C) The electrons gain free energy.(D) NAD+is oxidized.
In mitochondria, exergonic redox reactions(A) are the source of energy driving prokaryotic ATP synthesis.(B) provide the energy that establishes the proton gradient.(C) reduce carbon atoms to carbon dioxide.(D) are coupled via phosphorylated intermediatesto endergonic processes.
Thermogenin in the inner membrane of brown fat cell mitochondria does all of the following except
A) decrease the proton gradient.
B) uncouple ATP synthesis from electron transport.
C) generate heat.
D) decrease ATP synthesis.
E) increase ATP synthesis
Chapter 9 Solutions
Campbell Biology
Ch. 9.1 - Compare and contrast aerobic and anaerobic...Ch. 9.1 - WHAT IF? If the following redox reaction...Ch. 9.2 - Prob. 1CCCh. 9.3 - Prob. 1CCCh. 9.3 - What process in your cells produce the CO2 that...Ch. 9.3 - Prob. 3CCCh. 9.4 - Prob. 1CCCh. 9.4 - WHAT IF? In the absence of O2 as in question 1,...Ch. 9.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 9.5 - Consider the NADH formed during glycolysis. What...
Ch. 9.5 - WHAT IF? A glucose-fed yeast cell is moved from...Ch. 9.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.6 - Prob. 4CCCh. 9 - Describe the difference between the two processes...Ch. 9 - Which reactions in glycolysis are the source of...Ch. 9 - What molecular products indicate the complete...Ch. 9 - Briefly explain the mechanism by which ATP...Ch. 9 - Prob. 9.5CRCh. 9 - Prob. 9.6CRCh. 9 - Level 1: Knowledge/Comprehension 1. The immediate...Ch. 9 - Prob. 2TYUCh. 9 - Prob. 3TYUCh. 9 - Prob. 4TYUCh. 9 - What is the oxidizing agent in the following...Ch. 9 - When electrons flow along the electron transport...Ch. 9 - Prob. 7TYUCh. 9 - Prob. 8TYUCh. 9 - Prob. 9TYUCh. 9 - Prob. 10TYUCh. 9 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 9 - DRAW IT The graph here shows the pH difference...Ch. 9 - EVOLUTION CONNECTION AIP synthases are found in...Ch. 9 - SCIENTIFIC INQUIRY In the 1930s, some physicians...Ch. 9 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Coenzyme Q (CoQ) is sold...
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- In aerobic cellular respiration, which reactions occur only in the cytoplasm? Which ones occur only in a cells mitochondria?arrow_forwardWhat would be the effect on ATP production during chemiosmosis and oxidative phorphorylation, if the pH within the inner membrane space of the mitochondrion were decreased, assuming no effect of pH on the structure of proteins in the membrane? a) it would increase b) it would decrease c)it would stay the samearrow_forwardConsider the following diagram when answering the questions about cellular respiration. (a) Label the diagram. (b) Considering the electron transport chain. Why type of cell transport is happening at the ETC? Explain. (c) What type of cell transport is happening at ATP synthase? Explain. B Darrow_forward
- Predict the outcome of a mitochondrial membrane that is more permeable to hydrogen ions than normal. answer choices A.) Increased levels of inorganic phosphate in the mitochondrial matrix B.) Reduced formation of water C.) Reduced activity of electron transport chain D.) Increased activity of ATP synthasearrow_forwardConsider the following diagram when answering the questions about cellular respiration. (a) Label the diagram. (b) Considering the electron transport chain. Why type of cell transport is happening at the ETC? Explain. (c) What type of cell transport is happening at ATP synthase? Explain. B A D Earrow_forwardIn 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?arrow_forward
- As protons (H+) pass through the mitochondria inner membrane… Question 10 options: a) Protons follow their concentration gradient. b) All the potential energy contained in the proton gradient is converted into ATP. c) Some of the potential energy contained in the proton gradient is converted into ATP and some is released as heat (i.e., unusable energy). d) Protons go up in potential energy level and ∆G > 0. e) A and Carrow_forwardWhich effects the increased levels of hydrogen ions in the inter-membrane space of the mitochondria? a) Decreased levels of chemiosmosis b) Increased levels of water in inter-membrane space c) Increase ATP production d) Decreased levels of oxidative phosphorylationarrow_forwardWhat is the effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria? answer choices A.) Decreased levels of oxidative phosphorylation B.) Increased levels of water in intermembrane space C.) Decreased levels of chemiosmosis D.) Increased ATP productionarrow_forward
- Why are electron carriers (NAD+/NADH and FAD/FADH2) so important in the process of cellular respiration? A)NADH and FADH2 are major components of the ETC, so without them, there would be no ETC in the cell. B)They deliver electrons to the ETC, which in turn sets up chemiosmosis, where most of the ATP is generated. C)They separate the electrons from the protons so that the protons can be moved out of the mitochondrion. D)The electrons that they carry are able to directly phosphorylate ADP in order to generate the bulk of ATP in the cell. E) They transport protons across the mitochondrial membrane. 14.arrow_forwardWhat is the direct mechanism of ATP synthesis during the electron transport phase of cellular respiration? (what is the potential energy source that drives ATP production?) b) Why is oxygen needed for this phase? c) What is the role of ATP synthasearrow_forward(a) Starting with one molecule of glucose, how many ATPs are produced during (I) aerobic and (II) anaerobic respiration? (b) In chemiosmotic (oxidative) phosphorylation, what is the most direct source of energy that is used to convert ADP + Pi to ATP and what the driving force for the ATP formation through ATP synthase?arrow_forward
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