Biology (MindTap Course List)
10th Edition
ISBN: 9781285423586
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 8, Problem 13TYU
CONNECT How are the endergonic reactions of the first phase of glycolysis coupled to the hydrolysis of ATP, which is exergonic? How are the exergonic reactions of the second phase of glycolysis coupled to the endergonic synthesis of ATP and NADH?
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Solve the following problems using the basic assumptions: 1 NADH --> 2.5 ATP; 1 FADH2 --> 1.5 ATP
NADH produced in glycolysis is transported to the mitochondria where the electron is transferred to FADH2. At the end of the total degradation of a pyruvate, how many ATPs will be produced by oxidative phosphorylation only?
Arsenate (HaSO42) can replace inorganic phosphate (pi) in the reaction catalyzed by a glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate (NADH is still formed ). What is the net energy account of Phase 1 of glycolysis for a cell that is exposed to arsenate?
-0 ATP and 2 NADH gained
-2 ATPS produced
-2 ATPS and 2 NADH produced
-6 ATPS and 2 NADH used
-2 ATPS used
Consider the net summary equation for glycolysis. Suppose 13 molecules of glucose enter glycolysis. Calculate the number of molecules produced or used (a-d) upon completion of glycolysis utilizing all 13 glucose molecules. (a) # P; used (b) # pyruvates produced (c) # NADH produced (d) #ADP used.
Chapter 8 Solutions
Biology (MindTap Course List)
Ch. 8.1 - Write a summary reaction for aerobic respiration...Ch. 8.1 - Prob. 1CCh. 8.1 - Prob. 2CCh. 8.2 - Prob. 2LOCh. 8.2 - Prob. 3LOCh. 8.2 - Add up the energy captured (as ATP, NADH, and...Ch. 8.2 - Prob. 5LOCh. 8.2 - Prob. 6LOCh. 8.2 - Prob. 1CCh. 8.2 - Prob. 2C
Ch. 8.2 - What are the roles of NAD+, FAD, and oxygen in...Ch. 8.2 - Prob. 4CCh. 8.3 - Summarize how the products of protein and lipid...Ch. 8.3 - Prob. 1CCh. 8.3 - Prob. 2CCh. 8.3 - Prob. 3CCh. 8.4 - Compare and contrast anaerobic respiration and...Ch. 8.4 - What is the fate of hydrogen atoms removed from...Ch. 8.4 - What accounts for the ATP yield of fermentation...Ch. 8.4 - Is chemiosmosis involved in fermentation? in...Ch. 8 - A chemical process during which a substance gains...Ch. 8 - The reactions of _____ take place within the...Ch. 8 - Before pyruvate enters the citric acid cycle, it...Ch. 8 - In the first step of the citric acid cycle, an...Ch. 8 - Which of the following is the major source of...Ch. 8 - The aerobic part of aerobic cellular respiration...Ch. 8 - Prob. 7TYUCh. 8 - A net profit of only 2 ATPs can be produced...Ch. 8 - When deprived of oxygen, yeast cells obtain energy...Ch. 8 - Which of the following is a correct ranking of...Ch. 8 - Prob. 11TYUCh. 8 - CONNECT Explain why the proton gradient formed...Ch. 8 - CONNECT How are the endergonic reactions of the...Ch. 8 - PREDICT Could the inner mitochondrial membrane...Ch. 8 - Prob. 15TYUCh. 8 - Prob. 16TYUCh. 8 - EVOLUTION LINK The reactions of glycolysis are...Ch. 8 - Prob. 18TYU
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- How many ATPs—total and net—are produced from breaking down one molecule of glucose in glycolysis?arrow_forwardTable 8: ATP Yield from Anaerobic Respiration (for 1 Glucose Molecule) # of ATPS Generated through Substrate-Level Phosphorylation # of ATPS Generated from NADH and FADH, through Oxidative # of NADH and FADH, Produced Gross Subtotal of ATPS Produced Process Phosphorylation NADH: FADH2: Glycolysis NADH: FADH2: GROSS TOTAL of ATPS Produced # of ATPS Spent NETTOTAL of ATPS Produced Fermentationarrow_forwardGive typed full explanation Diagram the path of electron flow from NADH to the final electron acceptor during oxidative phosphorylation in mitochondria. For each electron carrier, indicate whether only electrons or both electrons and protons, are accepted/donated by that carrier. B) What would happen to this electron flow and what are the resulting consequences if myxothiazol is added to actively respiring mitochondria using succinate as an electron donor? C) Would you predict ubiquinone reduction to ubiquinol would be more favored at acidic pH or alkaline pH? Why? And as a result, would you predict Complex I active site for this reaction is closer to the N side or P side of the mitochondria?arrow_forward
- a) Using full chemical structures of substrates and products, draw the two possible pyruvate reduction pathways that regenerate NAD+ from NADH in the absence of oxygen gas. Give names of all compounds and enzymes involved. b) Draw the step in glycolysis that requires at least one of the above pathways to be functional in the absence of oxygen. Give names of all compounds and enzymes involved.arrow_forwardHUW Define metabolism, anabolism, and catabolism. List the ways cells control the flow of molecules through metabolic pathways. Explain the roles of the following molecules in biological energy transfer and storage: ADP, ATP, NADH, FADH2, NADPH. Outline the pathways for aerobic and anaerobic metabolism of glucose and compare the energy yields of the two pathways. Write two equations for aerobic metabolism of one glucose molecule: one using only words and a second using the chemical formula for glucose. Explain how the electron transport system creates the high-energy bond of ATP. Provide a general description of how proteins are made.arrow_forwardThe immediate energy source that drives ATPsynthesis by ATP synthase during oxidativephosphorylation is the(A) oxidation of glucose and other organiccompounds.(B) flow of electrons down the electron transportchain.(C) H+concentration gradient across the membrane holdingATP synthase.(D) transfer of phosphate to ADParrow_forward
- Match the following:Chemiosmosis (a) Pathway that begins the break-Glycolysis down of glucoseElectron (b) ATP production from a protontransport chain gradient across the plasmaFermentation membranePhotosynthesis (c) Anaerobic pathway that uses anKrebs cycle organic final electron acceptor (d) Pathway that uses carbon di- oxide, light, and chlorophyll to produce carbohydrates (e) Also is known as the tricar- boxylic acid cycle (TCA) or the citric acid cycle (f) Flavoproteins, cytochromes, and quinonesarrow_forwardWhat is the overall net reaction of glycolysis? C6H12O6 + 2 NADH + 2 P₁ + 2 ATP --> 2 C3H3O3 + 2 NAD+ + 2 H+ + 2 H₂O + 2 ADP C6H12O6 + 2 NAD+ + 4 P₁ + 4 ADP --> 2 C3H3O3 + 2 NADH + 2 H+ + 2 H₂O + 4 ATP Glucose + 2 NAD+ + 2 P₁ + 2 ADP --> 2 C3H3O3 + 2 NADH + 2 H+ + 2 H₂O + 2 ATP Glucose + 2 FAD + 2 P; + 2 ADP --> 2 Pyruvate + 2 FADH₂ + 2 H+ + 2 H₂O + 2 ATP C6H12O6 + 2 NAD+ + 2 P₁ + 2 ADP --> Pyruvate + 2 NADH + 2 H+ + 2 H₂O + 2 ATParrow_forwardOutline the chemiosmotic hypothesis for the mechanism by which oxidative phosphorylation is coupled with electron transport. How does uncoupling occur in tissues with uncoupling protein 1 (UCP1)? Under what circumstances would uncoupling be disadvantageous, and under what circumstances might it be advantageous?arrow_forward
- Table 7: ATP Yield from Aerobic Respiration (for 1 Glucose Molecule) in a Eukaryotic Cell # of ATPS Generated from NADH and FADH, through Oxidative # of ATPS Generated through Substrate-Level Phosphorylation # of NADH and FADH2 Produced Gross Subtotal of ATPS Produced Process Phosphorylation NADH: FADH2: NADH: FADH2: Glycolysis Transition Step NADH: FADH2: GROSS TOTAL of ATPS Produced # of ATPS Spent NET TOTAL of ATPS Produced Krebs Cyclearrow_forward[References] re the roles of NADH and FADH2 in the production of energy for the cell? DH is oxidized to FAD during electron transport, that then leads to the production of ATP. DH is reduced to FADH¯ during electron transport, that then leads to the production of ATP. DH and FADH, are reduced to NAD¯ and FADH during electron transport, that then leads to the production of AT DH and FADH2 are oxidized to NAD* and FAD during electron transport, that then leads to the production of ATP. mit Answer Try Another Version 1 item attempt remainingarrow_forwardWrite a balanced chemical equation for the pentose phosphate pathway in the first two modes depicted as shown, where (a) ribose-5-phosphate synthesis is maximized and (b) NADPH production is maximized, by conversion of the sugar phosphate products to glucose-6-phosphate for repeated operations of the pathway.arrow_forward
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