Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 5, Problem 4A
How much ATP could be obtained from the complete oxidation of one molecule of glucose? From one molecule of butterfat containing one glycerol and three 12-carbon chains?
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Why 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?
The 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.
How many ATP are produced from a triglyceride containing three 14 carbon fatty acids?
NOTE: Assume that glycerol is converted to Glyceraldehyde-3-Phosphate (step 6 of glycolysis).
Chapter 5 Solutions
Microbiology: An Introduction
Ch. 5 - Prob. 1RCh. 5 - DRAW ITUsing the diagrams below, show each of the...Ch. 5 - DRAW IT An enzyme and substrate are combined. The...Ch. 5 - Define oxidation-reduction, and differentiate the...Ch. 5 - There are three mechanisms for the phosphorylation...Ch. 5 - All of the energy-producing biochemical reactions...Ch. 5 - Fill in the following table with the carbon source...Ch. 5 - Write your own definition of the chemiosmotic...Ch. 5 - Why must NADH be reoxidized? How does this happen...Ch. 5 - NAME IT What nutritional type is a colorless...
Ch. 5 - Which substance in the following reaction is being...Ch. 5 - Which of the following reactions produces the most...Ch. 5 - Prob. 3MCQCh. 5 - Which of the following compounds has the greatest...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Which culture produces the most lactic acid? Use...Ch. 5 - Which culture produces the most ATP? Use the...Ch. 5 - Which culture uses NAD+? Use the following choices...Ch. 5 - Which culture uses the most glucose? Use the...Ch. 5 - Explain why, even under ideal conditions,...Ch. 5 - The following graph shows the normal rate of...Ch. 5 - Compare and contrast carbohydrate catabolism and...Ch. 5 - How much ATP could be obtained from the complete...Ch. 5 - The chemoautotroph Acidithiobacillus can obtain...Ch. 5 - Haemophilus influenzae requires hemin (X factor)...Ch. 5 - The drug Hivid, also called ddC, inhibits DNA...Ch. 5 - The bacterial enzyme streptokinase is used to...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- ..a) Draw all of the reactions that occur in the aerobic metabolism of glucose that hydrolyze a thiolester bond. In your answer, include complete structural formulae as well as the names of any cofactors, enzymes, reactants and products. b) Explain why the free energy changes that characterize these reactions are so exergonic. Include a figure in your answer. ( c) If you were to completely catabolize 3 molecules of glucose under aerobic conditions, what would the ATP yield be as a result of the reactions that you've drawn above?arrow_forwardDuring glycolysis (under anaerobic conditions), for each glucose molecule broken down, how many ATP molecules are used and how many are made in total? A diagram summarizing the different reactions of glycolysis is given below. ATP ADP ATP ADP Glucose Glucose-6-phosphate Fructose-6-phosphate Fructose-1,6-bisphosphate Dihydroxyacetone phosphate 2 (Glyceraldehyde-3-phosphate) Glyceraldehyde- 3-phosphate 2 (1,3-Bisphosphoglycerate) 2 (3-Phosphoglycerate) 2 (2-Phosphoglycerate) 2 H₂O 2 (Phosphoenolpyruvate) 2 (Pyruvate) 2 NAD+ + 2Pi 2 NADH + 2H 2 ADP 2 ATP -2 ADP 2 ATP 2 ATP molecules are used and 2 ATP molecules are made 2 ATP molecules are used and 4 ATP molecules are made O 6 ATP molecules are used and no ATP molecules are made O 4 ATP molecules are used and 2 ATP molecules are made O No ATP molecules are used and 6 ATP molecules are madearrow_forwardWhich of the selected phosphate group hydrolysis reactions listed in the table below can NOT be productively coupled to the synthesis of glucose-1-phosphate? Free energy of hydrolysis for certain phosphate bonds Compound kcal/ mol-1 Phosphoenolpyruvate -14.8 1,3-Bisphosphoglycerate -11.8 Creatine phosphate -10.3 ATP (to ADP) -7.3 Glucose 1-phosphate -5 Pyrophosphate -4.6 Glucose 6-phosphate -3.3 Glycerol 3-phosphate -2.2 ATP hydrolysis. Glucose-6-phosphate hydrolysis.arrow_forward
- In which of the following metabolic conversions is ATP “generated” during glycolysis? Glucose —> Glucose-6-phosphate 1,3-Bisphosphoglycerate —> 3-Phosphoglycerate Fructose-1,6-bisphosphate —> Dihydroxyacetone phosphate + Glyceraldehyde-3-phosphate Glucose-6-phosphate —> Fructose-6-phosphate 2-Phosphoglycerate —> 3-Phosphoglyceratearrow_forwardIf there are 3 molecules of glucose, how many molecules of pyruvic acid are produced after glycolysis?arrow_forwardWhich reaction is irreversible? oxidized glutathione + NADPH + H+ → reduced glutathione + NADP+ ribulose 5-phosphate → ribose 5-phosphate glucose 6-phosphate + NADP+ → 6-phosphoglucono-δ-lactone + NADPH + H+ sedoheptulose 7-phosphate + glyceraldehyde 6-phosphate → fructose 6-phosphate + erythrose 4-phosphate ribulose 5-phosphate → xylulose 5-phosphatearrow_forward
- consider the following fatty acid: ch3-ch2-ch2-ch2-ch2-ch2=ch-cooh. in terms of reducing equivalents, how much energy will it yield upon complete oxidation of co2? - 4 molecules of NADH and 4 molecules of FADH2 -4 molecules of NADH and 3 moleculs of FADH2 - 19 molecules of NADH and 8 molecules of FADH2 - 5 molecules of NADH and 8 molecules of FADH2 - 19 molecules of NADH and 9 molecules of FADH2arrow_forwardWhen glucose is reduced, only one alditol is produced.When fructose undergoes the same reaction, however,two diasteriomeric sugars are produced. Draw theirstructures.arrow_forwardWhich of the following molecules controls the metabolic flow through both glycolysis and gluconeogenesis? fructose-2,6-bisphosphate O pyruvate O 2,3-bisphosphoglycerate O Glucose-6-phosphate O lactic acid O citrate Which of the following enzymes plays a role in controlling the the half-life of CGMP? O CGMP phosphodiesterase O CGMP phosphatase O CGMP half-life controlling enzyme O CGMP kinase O CGMP phosphorylasearrow_forward
- Why is the sequence of reactions that catabolize fatty acids described as a spiral rather than a cycle?arrow_forwarda) Describe the structure of a glycogen molecule. (you can explain without drawing) b) List the three enzymes involved in glycogen degradation and describe the type of reactions they catalyze c) Fill in the numbered blanks in the figure which is the list the source and fates of glucose-6- phosphate. Glycogen pentose phosphate pathway Glucose-6-phosphate Ribose-G-phosphate Glucose glycolysis 3 Amino acida |Lactate Citric acid cyclearrow_forwardDescribe how a) Mean Arterial Pressure, b) Maximal Oxygen Consumption, and c) Blood Flow are determined using its formula. In addition, you should explain what those factors are including cardiac output, stroke volume, heart rate, resistance, a-vO2 difference, etc. Describe how many ATPs can be generated by complete cycles of beta oxidation of free fatty acid with 20 carbons. You should indicate how many cycles of beta oxidation and Krebs cycle, and total number of products as wellarrow_forward
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