Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 9, Problem 9.3CC
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Chapter 9 Solutions
Becker's World of the Cell (9th Edition)
Ch. 9 - How are catabolic and anabolic pathways similar?...Ch. 9 - Prob. 9.2CCCh. 9 - Why do oxidation and reduction reactions always...Ch. 9 - How can glucose be oxidized in the absence of...Ch. 9 - In the absence of oxygen, why is it necessary to...Ch. 9 - Prob. 9.6CCCh. 9 - Prob. 1QCh. 9 - Why dont glycolysis (glucose to pyruvate) and...Ch. 9 - Why are the key regulatory enzymes in glycolysis...Ch. 9 - Why do cancer cells carry out high rates of...
Ch. 9 - High-Energy Bonds. When first introduced by Fritz...Ch. 9 - The History of Glycolysis. Following are several...Ch. 9 - Glycolysis in 25 Words or Fewer. Complete each of...Ch. 9 - Energetics of Carbohydrate Utilization. The...Ch. 9 - QUANTITATIVE Glucose Phosphorylation. The direct...Ch. 9 - Ethanol Intoxication and Methanol Toxicity. The...Ch. 9 - Propionate Fermentation. Although lactate and...Ch. 9 - QUANTITATIVE Glycolysis and Gluconeogenesis. As...Ch. 9 - Prob. 9.9PSCh. 9 - Youve Got Some Explaining to Do. Explain each of...Ch. 9 - Arsenate Poisoning. Arsenate (HAsO42) is a potent...Ch. 9 - Life Without Phosphofructokinase. Many bacteria do...Ch. 9 - Prob. 9.13PS
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- Indicate whether each of the following changes represents oxidation or reduction. Write: O = for oxidation ; R= for reduction Example: cyt ci (Fet) → cyt c1 (Fe2+) Answer: R Blank #1: COQH2 → CoQ Blank #2: NAD+ - NADH Blank #3: FMN → FMNH2 Blank # 4: FADH2 FAD Blank #5: Fe(III) SP → Fe(II) SP Blank # 1 Blank # 2arrow_forwardIn a mixture of NAD+, NADH, ubiquinone, and ubiquinol, which compound will be oxidized? Which will be reduced?arrow_forwardFollow the two carbon atoms that enter the citric acid cycle (C₂). Are the two CO₂ molecules given off in one turn of the citric acid cycle composed of the same 2 carbon atoms that entered the cycle? NADH + H+ NAD+ H HỌ—C—COO- H₂C-COO- °↑ 7 FADH₂ 0 C-C00 H₂C-COO- Oxaloacetate Malate HC-COO- -OOC-CH Fumarate FAD Succinate H₂C-COO H₂C-COO CH,CO—S-CoA Acetyl coenzyme A GTP COA GDP COA H₂C-COO- HỌ–C–COO- H₂C-COO- Citrate H₂C-COO- Isocitrate HC-COO- HO–C–COO H e T CO₂ Succinyl COA H₂C-COO- CO₂ a-Ketoglutarate CoA H₂C-CO-S-CoA H₂C-COO H₂C 0-C-COO- NAD+ NADH + H+ NAD+ NADH + H+arrow_forward
- The reaction pictured is an oxidation-reduction reaction in the citric acid cycle in which the energy-carrier molecule NADH is generated. Identify which molecule in the reaction will be oxidized and which molecule will be reduced. Place a single answer choice in each box. COO- HO-C-H H-C-H COO- Malate NAD+ NADH + H+ Oxidized malate oxaloacetate COO- H-C-H ī COO- Oxaloacetate Reduced NADH NAD+arrow_forwardcatabolism plus anabolism is equal?arrow_forwardHow many times must the TCA cycle be performed to oxidize one molecule of glucose completely to six molecules of CO2? Why?arrow_forward
- The condensation reaction catalyzed by ß-ketoacyl-ACP synthase synthesizes a four-carbon unit by combining a two-carbon unit and a three-carbon unit, with the release of CO₂. What is the thermodynamic advantage of this process over one that simply combines two two-carbon units? The reaction is reversible and does not require the input of ATP. The exergonic release of CO₂ drives the irreversible reaction in the direction of fatty acid synthesis. The release of CO₂ is endergonic and results in the production of ATP. The reaction is endergonic and requires the input of ATP.arrow_forwardDefine an oxidation/reduction (redox) reaction. Why are redox reactions important in cellular respiration?arrow_forwardUsing the symbols X-H2 and Y, draw a coupled oxidation-reduction reaction. Designate the molecule that is reduced and the one that is oxidized and state which one is the reducing agent and which is the oxidizing agent.arrow_forward
- Glucose is completely metabolized to six molecules of CO 2. What specifi c reactions generate each molecule of CO 2?arrow_forwardHow much ATP would be generated by having one molecule of oxaloacetate being completely oxidized to CO2 by oxidative phosphorylation? Assume all necessary intermediates and electron carriers are present to carry out the reactions.arrow_forwardConsider the steps of the krebs cycle and electron carrier chain and answer: a) How many ATPs are produced from 10 Pyruvato molecules? b) How many ATPs are produced from 12 Acetyl CoA molecules?arrow_forward
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