IA MODIFIED MASTERING BIOLOGY WITH E TEX
12th Edition
ISBN: 9780136781752
Author: Urry
Publisher: PEARSON
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Chapter 9.5, Problem 2CC
WHAT IF? Ø A glucose-fed yeast cell is moved from an aerobic environment to an anaerobic one. How would its rate of glucose consumption change if ATP were to be generated at the same rate?
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A glucose-fed yeast cell is moved from an aerobic environment to an anaerobic one. For the cell to continue to generate ATP at the same rate, approximately how much glucose must it consume in the anaerobic environment compared with the aerobic environment?
What is ATP? Where is the energy held in this molecule? Describe the generalized reversible reaction for release of energy from ATP and explain the role of ATP in the cell. What organelle is responsible for aerobic production of ATP? What are the other two methods of ATP production in the cells? What is cellular respiration?
Chapter 9 Solutions
IA MODIFIED MASTERING BIOLOGY WITH E TEX
Ch. 9.1 - Compare and contrast aerobic and anaerobic...Ch. 9.1 - WHAT IF? If the following redox reaction...Ch. 9.2 - Prob. 1CCCh. 9.3 - Prob. 1CCCh. 9.3 - What process in your cells produce the CO2 that...Ch. 9.3 - Prob. 3CCCh. 9.4 - Prob. 1CCCh. 9.4 - WHAT IF? In the absence of O2 as in question 1,...Ch. 9.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 9.5 - Consider the NADH formed during glycolysis. What...
Ch. 9.5 - WHAT IF? A glucose-fed yeast cell is moved from...Ch. 9.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.6 - Prob. 4CCCh. 9 - Describe the difference between the two processes...Ch. 9 - Which reactions in glycolysis are the source of...Ch. 9 - What molecular products indicate the complete...Ch. 9 - Briefly explain the mechanism by which ATP...Ch. 9 - Prob. 9.5CRCh. 9 - Prob. 9.6CRCh. 9 - Level 1: Knowledge/Comprehension 1. The immediate...Ch. 9 - Prob. 2TYUCh. 9 - Prob. 3TYUCh. 9 - Prob. 4TYUCh. 9 - What is the oxidizing agent in the following...Ch. 9 - When electrons flow along the electron transport...Ch. 9 - Prob. 7TYUCh. 9 - Prob. 8TYUCh. 9 - Prob. 9TYUCh. 9 - Prob. 10TYUCh. 9 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 9 - DRAW IT The graph here shows the pH difference...Ch. 9 - EVOLUTION CONNECTION AIP synthases are found in...Ch. 9 - SCIENTIFIC INQUIRY In the 1930s, some physicians...Ch. 9 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Coenzyme Q (CoQ) is sold...
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- 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_forwardassuming each NADH produces 3 ATP and each fadh2 produces 2 ATP in oxidative phosphorylation (perfect world scenario), how many ATP molecules can one glucose molecule make via cellular respiration under aerobic conditionarrow_forwardWould you expect ATP to inhibit or stimulate activity of this enzyme in the glycolysis pathway? Why? What is the immediate energy source that drives ATP synthesis by ATP Synthase during oxidative phosphorylation? Where is CO2 produced in aerobic cell respiration? What would happen to chemiosmosis if the pH in the inner membrane space was decreased (lower)? What would happen if there was an absence of O2 in the electron transport chain? How many ATP’s are formed in the process phosphoglyceraldehyde also known as PGAL? Fatty acid chains after subjected to degradative enzymes in the intestines are hydrolyzed (hydrolysis) into 2 Carbon acetic acid fragments (Each fragment becomes an acetyl Co-A molecule). What stage of cellular respiration will this product of lipolysis enter? How many ATP can one fragment produce in cellular respiration? Calculate the number of ATP harvested from complete oxidation (breakdown) of an 18 carbon fatty acid? Calculate the number of ATP harvested from…arrow_forward
- Cells use two ways of storing potential energy: 1) as concetration gradients and 2) in molecules. A) Explain how energy can be stored in these two forms and how it can be used to do the work. B) Propose an analogy that can explain each these forms of energy storage using everyday items.arrow_forwardGive correct handwritten answerarrow_forwardSee picturearrow_forward
- Solve the following problems using the basic assumptions: 1 NADH --> 2.5 ATP; 1 FADH2 --> 1.5 ATP Complete degradation of glucose will yield -686 kcal/mol. However, computing the energy yield from 32 ATPs at -7.3 kcal/mole each will only yield -233.6 kcal/mole. What is the percentage yield by the cell? Answer must be whole number.arrow_forwardCan you please explain the relationship of ATP concentration and NADH concentration in this graph (cellular respiration)? At different treatments of ATP (E.g. At 25 ATP, 50 ATP, 100 ATP), why did the NADH concentration change?arrow_forwardAssume a cell is respiring aerobically and is using glucose as an energy source. What is the ultimate fate of each of the 6 carbon atoms in a glucose molecule that begins the aerobic pathway (i.e., what happens to each of the carbons and where does it happen)?arrow_forward
- .Wheeler and Mathews (J. Biol. Chem. 286:16992–16996, 2011) reported the concentrations of adenine nucleotides in rat liver mitochondria as fol- lows: ATP, 5.5 mM; ADP, 5.1 mM; AMP, 1.8 mM. (a) Calculate the adenylate energy charge within the mitochondrion [ATP] + 0.5[ADP] (adenylate energy charge [ATP] + [ADP] + [AMPJ' (b) Most measurements of adenylate energy charge in whole cells or cytosol give values close to 0.9. Speculate on reasons why it might be advantageous for mitochondria to have an ADP concentration almost as high as that of ATP. (c) succinyl-CoA + ADP + P¡ = -2.9 kJ/mol If [P;] within the mitochondrion is 0.05 M and succinate and succinyl- CoA are present at equimolar concentrations, what is the maximum succinate + ATP + CoA-SH AG°' mitochondrial concentration of CoA-SH at which the reaction can be exergonic?arrow_forwardCONNECT 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?arrow_forwardWhat would be the effect on ATP production during chemiosmosis and oxidative phorphorylation, if the pH within the inner membrane space of the mitochondrion were decreased, assuming no effect of pH on the structure of proteins in the membrane? a) it would increase b) it would decrease c)it would stay the samearrow_forward
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