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 12TYK
The energy required for the chemiosmotic synthesis of ATP is provided by
- a. a gradient of hydrogen ions.
- b. a gradient of sodium ions.
- c. ADP.
- d. water.
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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
ATP inhibits phosphofructokinase by binding to an allosteric site in glycolysis. ATP is functioning as a a. competitive inhibitor. b. competitive activator. c. noncompetitive inhibitor. d. noncompetitive activator.
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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- Chemiosmosis involves a. the movement of electrons across the cell membrane. b. the movement of hydrogen atoms across a mitochondrial membrane. c. the movement of hydrogen ions across a mitochondrial membrane. d. the movement of glucose through the cell membrane.arrow_forwardThe proton-motive force is a.ATP synthase. b.a redox reaction. c.the proton concentration gradient. d.the movement of electrons across the membrane. e.a metabolic pathwayarrow_forwardWhich of the following is true about cell potential? a. It is the sum of the oxidation and reduction potentials b. It is the average of the oxidation and reduction potentials c. It is the reduction potential multiplied by the oxidation potential. d. It is the difference between the reduction and oxidation potentials.arrow_forward
- Which of these statements about ATP is true?a.The bond joining ADP and the third phosphate is a high-energy bond.b.The formation of ATP is coupled to energy-liberating reactions.c.The conversion of ATP to ADP and Pi provides energy for biosynthesis, cell movement, and other cellular processes that require energy.d.ATP is the “universal energy carrier” of cells.e. .All of these are true.arrow_forwardA shortage of available ATP would hinder a cell's ability to import Select one: a. water. b. oxygen. c. protein. d. carbon dioxide.arrow_forwardHow do electroneutral co-transporters depend on the transmembrane potential? Select one: a. They depend on the transmembrane potential to some extent b. They are completely independent of the transmembrane potential c. They very slightly depend on the transmembrane potential d. They strongly depend on the transmembrane potentialarrow_forward
- When hydrogen ions are pumped across the inner membrane into the intermembrane space, this results in a. restoration of the Na+/K+ balance across the membrane b. creation of a proton- motive force c. reduction of NAD+ d. direct formation of ATP e. lowering of pH in the mitochondrial matrixarrow_forwardWhere will the energy for active transport be derived from? A. Hydrolysis of ATP B. Co-transport of metabolites via carrier molecules, channels or gates C. Amino acid rearrangement due to conformational changes in the protein carriers, channels or gates. D. Both A and B E. All of thesearrow_forwardWhich of the statements is NOT TRUE about anaerobic respiration and fermentation? a. Anaerobic respiration has greater ATP output than fermentation. b. Both anaerobic respiration and fermentation does not require oxygen. c. Both anaerobic respiration and fermentation establish chemiosmotic gradients. d. Anaerobic respiration predominantly characterized by complete oxidation of substrate.arrow_forward
- Which one of the following buffers the concentration of ATP? Select one: a. Glycolysis b. Acidosis O c. Phosphocreatine O d. Oxidative phosphorylation e. Acetyl coenzyme Aarrow_forwardWhat will be the net product of the complete degradation of one glycerol molecule to carbon dioxide and water? (Consider GTP equivalent to ATP) A. 6 NADH, 1 FADH2, 2 ATP B. 4 NADH, 1 FADH2, 2 ATP C. 5 NADH, 1 FADH2, 3 ATP D. 4 NADH, 1 FADH2, 2 ATP E. 4 NADH, 1 FADH2, 1 ATParrow_forwardOne of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency and the enzyme lacks zinc, it would be referred to as the: a. apoenzyme. b. coenzyme. c. holoenzyme. d. prosthetic group. e. substrate.arrow_forward
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