EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Chapter 3.9, Problem 1CR
Summary Introduction
Cellular mechanisms involve in many reactions in which the transfer of electrons from one molecule to another by means of
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Why is it reasonable for excess NADH to negatively regulate the citric acid cycle?
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Chapter 3 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 3.1 - Which four chemical elements make up the bulk of a...Ch. 3.1 - Which two classes of macromolecules contain most...Ch. 3.1 - Differentiate between trace metals and growth...Ch. 3.1 - Prob. 1CRCh. 3.2 - Compare and contrast simple transporters, the...Ch. 3.2 - Prob. 2MQCh. 3.2 - Cells of Escherichia coli transport lactose via...Ch. 3.3 - Prob. 1MQCh. 3.3 - Prob. 2MQCh. 3.3 - Prob. 1CR
Ch. 3.4 - What is free energy?Ch. 3.4 - Prob. 2MQCh. 3.4 - Using Table 3.2, calculate G0 for the reaction...Ch. 3.4 - Prob. 1CRCh. 3.5 - Prob. 1MQCh. 3.5 - Prob. 2MQCh. 3.5 - Prob. 3MQCh. 3.5 - Prob. 1CRCh. 3.6 - Prob. 1MQCh. 3.6 - Prob. 2MQCh. 3.6 - Prob. 3MQCh. 3.6 - Prob. 1CRCh. 3.7 - How much free energy is released when ATP is...Ch. 3.7 - Prob. 2MQCh. 3.7 - Prob. 3MQCh. 3.7 - Prob. 1CRCh. 3.8 - Which reactions in glycolysis are redox steps?Ch. 3.8 - Prob. 2MQCh. 3.8 - Prob. 3MQCh. 3.8 - How is ATP made in fermentation and in...Ch. 3.9 - How many molecules of CO2, NADH, and FADH2 are...Ch. 3.9 - What two major roles do the citric acid cycle and...Ch. 3.9 - Why is the glyoxylate cycle necessary for growth...Ch. 3.9 - Prob. 1CRCh. 3.10 - Prob. 1MQCh. 3.10 - Which electron carriers described in this section...Ch. 3.10 - List some of the key electron carriers found in...Ch. 3.11 - How do electron transport reactions generate the...Ch. 3.11 - How much energy is released per NADH oxidized...Ch. 3.11 - What structure in the cell links the proton motive...Ch. 3.11 - Prob. 1CRCh. 3.12 - Prob. 1MQCh. 3.12 - Prob. 2MQCh. 3.12 - Prob. 3MQCh. 3.12 - What is the major difference between aerobic...Ch. 3.13 - What form of activated glucose is used in the...Ch. 3.13 - Prob. 2MQCh. 3.13 - What functions does the pentose phosphate pathway...Ch. 3.13 - What is the importance of the enzyme...Ch. 3.14 - Prob. 1MQCh. 3.14 - List the steps required for the cell to...Ch. 3.14 - Which nitrogen bases are purines and which are...Ch. 3.14 - Prob. 1CRCh. 3.15 - Prob. 1MQCh. 3.15 - Prob. 2MQCh. 3.15 - Describe the process by which a fatty acid such as...Ch. 3 - Using the data of Figure 3.10, predict the...Ch. 3 - Prob. 2AQ
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- What step in the citric acid cycle is inhibited by fluoroacetate treatment?arrow_forwardHow many ATP molecules are generated from one complete metabolism of one molecule of maltose assuming all electrons of cytosolic NADH are transferred through the dihydroxyacetone phosphate/glycerol 3-phosphate shuttle?arrow_forwardIs phosphoglucomutase likely to be regulated? Why or why not? What about glucose 6-phosphate dehydrogenase?arrow_forward
- Which of the following are required to begin the citric acid cycle? (select all that apply) Group of answer choices pyruvate oxaloacetate Acetyl CoA glucose pyruvate dehydrogenase What are the 2 main types of mechanisms involved in regulating the activity of the pyruvate dehydrogenase complex in response to the state of the cell/organism? (select all that apply) Group of answer choices isomerization hydration allosteric regulation induced fit covalent modification Which of the following are likely to negatively regulate (decrease) the conversion of pyruvate to acetyl CoA? (select all that apply) Group of answer choices High levels of ATP Increased PDH kinase activity Influx of Ca2+ ions Insulin signaling High levels of NADHarrow_forwardHow many ATP, NADH, and FADH2 are produced by one molecule of glucose proceeding through the citric acid cycle?arrow_forwardThe complete oxidation of glucose 6-phosphate derived from free glucose yields 30 molecules ATP, whereas the complete oxidation of glucose 6- phosphate derived from glycogen yields 31 molecules of ATP. Account for this difference.arrow_forward
- The heart cannot convert lactate back to glucose, as the liver does, but instead uses it as a fuel. What is the ATP yield from the complete catabolism of one mole of lactate?arrow_forwardWhy is it important that gluconeogenesis is not the exact reversal of glycolysis?arrow_forwardWhy is the isomerization of glucose-6-phosphate (G6P) to fructose-6-phosphate (F6P) an important step in glycolysis? How is the isomerization of F6P back into G6P prevented?arrow_forward
- What are the final products of the citric acid cycle (including the transitional phase) for the breakdown of 1 glucose molecule?arrow_forwardWhat is the final fate of the carbons in acetyl-CoA after several turns of the citric acid cycle?arrow_forwardWhat reaction serves to link glycolysis and the citric acid cycle, and what is the enzyme that catalyzes the reaction?arrow_forward
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