Connect with Learnsmart Labs Access Anatomy & Physiology : An Integrative Approach
2nd Edition
ISBN: 9781259657269
Author: Valerie Dean O'Loughlin, Theresa Stouter Bidle Michael P. McKinley
Publisher: Mcgraw-Hill
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Chapter 3, Problem 4DYKB
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.
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Students have asked these similar questions
Which of the following is incorrect about the ATP synthase mechanism?
a. It explains how ATP is hydrolyzed into ADP and Pi
b. At any moment, each catalytic site has a different conformation and binding affinity
c. It is called the binding change mechanism
d. It involves rotation-driven conformational changes that alter the affinity of each catalytic subunit
Which of the following reactions is the most exergonic?
a
Conversion of PEP to Pyruvate
b
Conversion of Glucose-6-phosphate to Glucose
c
All of the reactions are equally exergonic.
d
Hydrolysis of ATP
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.
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Chapter 3 Solutions
Connect with Learnsmart Labs Access Anatomy & Physiology : An Integrative Approach
Ch. 3.1 - Both the movement of Na+ down its concentration...Ch. 3.1 - Muscle contraction is an example of what form of...Ch. 3.1 - Prob. 3WDYLCh. 3.2 - Prob. 4WDYLCh. 3.2 - For a biochemical reaction that involves simple...Ch. 3.2 - What molecule is formed from exergonic reactions...Ch. 3.2 - Explain what occurs when the equilibrium is...Ch. 3.2 - Explain the effect a fever would have on chemical...Ch. 3.2 - What is the relationship of enzymes and activation...Ch. 3.3 - What is the active site of an enzyme and how does...
Ch. 3.3 - What is the mechanism of enzyme action, including...Ch. 3.3 - Explain how enzymes are generally named.Ch. 3.3 - How do changes in substrate concentration,...Ch. 3.3 - How are enzymes regulated through competitive and...Ch. 3.3 - Prob. 15WDYLCh. 3.3 - Prob. 16WDYLCh. 3.4 - Prob. 17WDYLCh. 3.4 - Prob. 18WDYLCh. 3.4 - Prob. 19WDYLCh. 3.4 - Prob. 20WDYLCh. 3.4 - Prob. 21WDYLCh. 3.4 - Prob. 22WDYLCh. 3.4 - Prob. 23WDYLCh. 3.4 - Prob. 24WDYLCh. 3.4 - Prob. 25WDYLCh. 3.4 - Prob. 26WDYLCh. 3.4 - Prob. 27WDYLCh. 3.4 - Prob. 28WDYLCh. 3 - Energy in ATP is used to power skeletal muscle...Ch. 3 - Prob. 2DYKBCh. 3 - Prob. 3DYKBCh. 3 - ATP inhibits phosphofructokinase by binding to an...Ch. 3 - All of the following are accurate about enzymes...Ch. 3 - Prob. 6DYKBCh. 3 - Prob. 7DYKBCh. 3 - All stages of cellular respiration are decreased...Ch. 3 - Prob. 9DYKBCh. 3 - Prob. 10DYKBCh. 3 - Prob. 11DYKBCh. 3 - Describe the different ways of classifying...Ch. 3 - Prob. 13DYKBCh. 3 - Describe the structure and mechanism of enzymes.Ch. 3 - Prob. 15DYKBCh. 3 - Prob. 16DYKBCh. 3 - In general terms, explain the fate of pyruvate if...Ch. 3 - Describe how oxygen becomes part of water during...Ch. 3 - Identify the source of carbon in carbon dioxide.Ch. 3 - Prob. 20DYKBCh. 3 - Prob. 1CALCh. 3 - Prob. 2CALCh. 3 - Another challenge to a patient with impaired...Ch. 3 - Prob. 4CALCh. 3 - Prob. 5CALCh. 3 - Prob. 1CSLCh. 3 - Prob. 2CSLCh. 3 - What occurs to the amount of product formed in a...
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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
- What specific reaction cannot occur due to the presence of cyanide? A.Transfer of electrons to co-enzymes B.Inability to strip a carbon from pyruvate C.Transfer of electrons to and between carrier proteins D.Addition of a phosphate onto ADP to make ATParrow_forwardGlycolysis "uses" ATP by: A. substrate-level phosphorylation B. oxidative phosphorylation C. reducing CO2 D. anabolismarrow_forwardIndicate at what step in the glycolysis pathway each of the following events occur: a. Second formation of ATP occurs b. Second “energy-rich” compound is produced c. Second time ATP is converted to ADP d. A hydration reaction occursarrow_forward
- ATP inhibits glycolysis by binding to an allosteric site on the last enzyme In the pathway, thus ATP is a... A. Competitive inhibitor B. Noncompetitive inhibitor C. Feedback inhibitor D. More than one of these answers. Please give the rationale as to whyarrow_forwardWhich of the following statements is a lie?Select one:a.Specific enzymes in the electron transport chain are unaffected by feedback inhibition.b.Elevated levels of ADP will increase pathway activity in the electron transport chain.c.The rate of transport of electrons through the electron transport chain is regulated by feedback inhibition.arrow_forwardWhich of the following is likely to happen in a muscle cell in an anaerobic environment? Question 9 options: a) The conversion of pyruvic acid to lactic acid b) The Krebs Cycle c) Photosynthesis d) The conversion of pyruvic acid to Acetyl CoAarrow_forward
- One of the main differences between aerobic respiration and fermentation is _________. a. fermentation occurs only in prokaryotic cells b. ATP forms only in aerobic respiration c. fermentation uses no electron transfer chains d. aerobic respiration requires no oxygenarrow_forwardWhich 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.arrow_forwardOligomycin is a substance that prevents the ATP synthesis reaction in oxidative phosphorylation, and 2,4-dinitrophenol is an uncoupling agent. In the presence of oligomycin, what would be the effect of adding 2,4-dinitrophenol? A) O2 consumption will increase. B) Electron transfer will be blocked. C) Oxidative phosphorylation will occur. D) Production of water will decrease.arrow_forward
- What 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_forwardthe reaction catalyzed by glyceradehyde 3-phosphate dehydrigenase is based on NAD+ and a active site cysteine. Also another phosphate group is added. what is the reason for that? a) because one ATP is consumed b) an inorganic phosphate is activated for ATP synthesis C) NADH can be recycld and than converted back to NAD+ for glycolysis d) because one ATP is generatedarrow_forwardWhich of the following statements is correct? a. Glycolysis and Krebs cycle produce ATP in substrate level phosphorylation b. Glycolysis and Krebs cycle produce ATP in oxidative level phosphorylation. c. Glycolysis and pyruvate oxidation produce ATP in substrate level phosphorylation. d. Glycolysis and pyruvate oxidation produce ATP in oxidative level phosphorylation.arrow_forward
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