Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Chapter 7, Problem 3TY
Summary Introduction
Introduction: Glucose molecules enter the glycolytic pathway and get converted to two three-carbon molecules of pyruvate. Energy in the form of ATP and NADH is produced during glycolysis. This helps in
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One 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.
Which of the following is true concerning glycolysis?
A. It is an aerobic process.
B. A net of 2 molecules of ATP are produced.
C. A total of 38 ATP are produced.
D. 4 NADH are produced.
Which of the following is FALSE about glycolysis?
a. The pathway axidizes two moles of NADH to NAD* for each mole of glucose.
b. The pathway requires two moles of ATP to get started catabolizing each mole of glucose.
c. ADP is phosphorylated to ATP via substrate -level phosphorylation.
d. The pattivay produces pyruvate as one of its products.
Chapter 7 Solutions
Biology
Ch. 7.2 - Prob. 1CCCh. 7.2 - Core Skill: Connections Look ahead to Table 45.1....Ch. 7.2 - Which organic molecules donate a phosphate group...Ch. 7.2 - Prob. 2BCCh. 7.4 - Prob. 1CCCh. 7.5 - Explain the meaning of the name cytochrome...Ch. 7.6 - Prob. 1CCCh. 7.6 - Prob. 2CCCh. 7.6 - Prob. 1EQCh. 7.6 - CoreSKILL In the experiment of Figure 7.13, what...
Ch. 7.6 - Prob. 3EQCh. 7.7 - Prob. 1CCCh. 7 - Which of the following pathways occurs in the...Ch. 7 - Prob. 2TYCh. 7 - Prob. 3TYCh. 7 - Which organic molecule supplies a two-carbon group...Ch. 7 - The ability to diagnose tumors using...Ch. 7 - Prob. 6TYCh. 7 - Certain drugs, which are called ionophores, cause...Ch. 7 - Prob. 8TYCh. 7 - Prob. 9TYCh. 7 - Prob. 10TYCh. 7 - Prob. 1CQCh. 7 - What causes the rotation of the subunit of ATP...Ch. 7 - Prob. 3CQCh. 7 - Discuss the advantages and disadvantages of...Ch. 7 - Prob. 2COQ
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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 choicearrow_forwardGlycolysis is regulated primarily by _______________. a. three strongly exergonic, non-equilibrium reactions. b. three strongly endergonic, non-equilibrium reactions. c. allosteric effectors of pyruvate kinase. d. phosphorylation of phosphofructokinase. e. the availability of glucose-6-phosphate.arrow_forwardWhich 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_forward
- In the first step of glycolysis, glucose can be phosphorylated to glucose-6-phosphate, because.. A. transfer of a phosphate from ATP to glucose is endergonic. B. a phosphoanhydride bond has higher energy of hydrolysis than is required for formation of a phosphoester bond. C. the reaction does not require an enzyme. D. the reaction is highly reversible. E. All of the above are correct.arrow_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_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_forward
- Chemical potential energy stored in the reduced coenzyme, NADH or FADH2 is converted to chemical potential energy in ATP in which of the following processes? a. the citric acid cycle b. glycolysis c. beta oxidation d. oxidative phosphorylation. e. all of the abovearrow_forwardGlycolysis "uses" ATP by: A. substrate-level phosphorylation B. oxidative phosphorylation C. reducing CO2 D. anabolismarrow_forwardOxidative phosphorylation requires all of the items listed below except... A. a terminal electron acceptor which is O2 in mitochondria. B. a matrix more positively charged than the inter membrane space. C. the flow of electrons from NADH and QH2 in the membrane. D. enzyme complexes embedded in a membrane. E. ATP synthase in the correct position in the membrane.arrow_forward
- In the net reaction of glycolysis, which of the following is a term on the product side? a. 2 NADH b. glucose c. O2 d. 2 NAD+ e. 2 acetyl CoAarrow_forwardCurrently, scientists are identifying proteins that use ATP as an energysource bya. determining whether those proteins function in anabolic or catabolicreactions.b. determining if the protein has a known ATP-binding site.c. predicting the free energy necessary for the protein to function.d. determining if the protein has an ATP synthase subunit.e. all of the above.arrow_forwardWhich of the following is associated with the process of ATP re-synthesis during exercise? a. The energy necessary is captured, in part, by the oxidation of electron transporter molecules (NADH, FADH2) b. Reliant upon release of stored energy obtained from dietary intake c. A process that requires energy as a substrate in order to drive the biochemistry of re-synthesis d. Facilitated through a blending of both anaerobic and aerobic metabolic pathways e. All of the above are true f. Only B and D are truearrow_forward
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