Homework Answers
14. B. Mannose could be transformed into Fructose-6-phosphate.
15. D. Pentose Phosphate Pathway, oxidative phase, leads to a loss of Carbon.
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14. Which of the following sugars could be transformed into fructose 6-phosphate if glucose and glucose...
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts...
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts pentoses to hexoses. b. produces ribulose-5-phosphate and NADPH for biosynthetic processes. c. is reversible under physiological conditions. d. has an enzyme requiring thiamine pyrophosphate as a coenzyme. Section: 14.5 Pentose Phosphate Pathway of Glucose Oxidation 14) The nonoxidative phase of the pentose phosphate pathway: a. has a heptose intermediate. b. is irreversible under physiological conditions. c. is impaired in glucose-6-phosphate dehydrogenase deficiency. d. is...
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A....
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A. Phosphoglycerate kinase B. Hexokinase C. Pyruvate kinase D. Phosphofructokinase-1 E. All above 17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis.
17. Which of the following would be an inappropriate biochemical response to low blood sugar? A....
17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis. 18. Which of the following statements is not true concerning glycolysis in anaerobic muscle A. Its rate is slowed by a high (ATP]/(ADP) ratio B. It results in no change of NADH C. It results in net synthesis of ATP D. It is an...
Which of the following are epimers? a) glucose and fructose, b)glucose and galactose, c) galactose and...
Which of the following are epimers? a) glucose and fructose, b)glucose and galactose, c) galactose and mannose, OR d) lactose and maltose
QUESTION 45 Which of the following is a catabolic process that takes place only in the...
QUESTION 45 Which of the following is a catabolic process that takes place only in the absence of oxygen? O fermentation glycolysis electron transport / oxidative phosphorylation citric acid cycle QUESTION 46 Which of the following is the name of a metabolic pathway that uses glucose to produce ribose-5-phosphate and the reducing coenzyme, NADPH? oxidative deamination glycolysis the pentose phosphate pathway gluconeogenesis fermentation QUESTION 47
4 Which of the following statements are true? Fructose-2,6-bisphosphate activates glycolysis Inorganic phosphate (that is, P)...
4 Which of the following statements are true? Fructose-2,6-bisphosphate activates glycolysis Inorganic phosphate (that is, P) is required for the function of glycogen phosphorylase Fructokinase is located primarily in liver cells A and C above only All of the above. E. 5. Chylomicrons ... A B. Are assembled from exogenous lipids. Contain tryacylglycerol in the center Are produced in the stomach A and B above A and C above 6. UDP-Glucose pyrophosphorylase.... B. Produces UDP-glucose Needs UTP and glucose-1-phosphate as...
1.) Which of the following is the substrate or product of the reactions that comprise the...
1.) Which of the following is the substrate or product of the reactions that comprise the oxidative phase of the pentose phosphate pathway? A) glyceraldehyde-3-phosphate B) Ribulose-5-phosphate C) Seduheptulose - 7 - phosphate D) Ribose-5-phosphate 2) The regulated reactions of gluconeogenesis have/are A) Activated by molecules indicating a low energy charge in the cell B) reversible reactions C) those thare counter to regulated reactions in glycolysis D)Large positive change in G values 3) The biosynthesis of triacylglycerols in animals uses...
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG...
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG for the reaction (K measured at 25 °C)? AG -1680.9 kJ/mol If the concentration of fructose 6-phosphate is adjusted to 1.4 M and that of glucose 6-phosphate is adjusted to 0.75 M, what is AG? AG =-4402.59 kJ/mol Which statements are consistent with the conditions at which AG is measured? The temperature is 273 K. The initial concentrations of reactant and product are 1...
2) if a single glucose molecule was completely catabolized to 2 pyruvate, then the liver built...
2)
if a single glucose molecule was completely catabolized to 2
pyruvate, then the liver built the 2 pyruvate back to glucose, how
much free energt would be lost?
4) at which glycolysis metabolite does glycogen synthesis amd
the pentose phosphate pathway branch off from?
MIBROS JUJILOR DUE 3/13 at the beginning of class CHOH ресто points) OPOCH HO PHY OH OR equal ts3 > Loc Energy 50 Investmen when Phase n ] ohuoc but at Glucose 1)(6) Fill in...
Section 142 5) Dietary glycogen: .. is broken down to glucose by a different group of...
Section 14.2 5) Dietary glycogen: a. is broken down to glucose by a different group of enzymes than is dietary starch. b. is broken down to glucose-6-phosphate, which is then absorbed by the intestinal cells. c. results in the formation of limit dextrins in the intestine as an intermediate in its digestion. d. effectively produces an extra ATP when its glucose goes through glycolysis. Section: 14.2 Feeder Pathways for Glycolysis 6) Fructose: a. is broken down by a pathway known as fructolysis. b. can be phosphorylated by either hexokinase...
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts pentoses to hexoses. b. produces ribulose-5-phosphate and NADPH for biosynthetic processes. c. is reversible under physiological conditions. d. has an enzyme requiring thiamine pyrophosphate as a coenzyme. Section: 14.5 Pentose Phosphate Pathway of Glucose Oxidation 14) The nonoxidative phase of the pentose phosphate pathway: a. has a heptose intermediate. b. is irreversible under physiological conditions. c. is impaired in glucose-6-phosphate dehydrogenase deficiency. d. is...
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A. Phosphoglycerate kinase B. Hexokinase C. Pyruvate kinase D. Phosphofructokinase-1 E. All above 17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis.
17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis. 18. Which of the following statements is not true concerning glycolysis in anaerobic muscle A. Its rate is slowed by a high (ATP]/(ADP) ratio B. It results in no change of NADH C. It results in net synthesis of ATP D. It is an...
QUESTION 45 Which of the following is a catabolic process that takes place only in the absence of oxygen? O fermentation glycolysis electron transport / oxidative phosphorylation citric acid cycle QUESTION 46 Which of the following is the name of a metabolic pathway that uses glucose to produce ribose-5-phosphate and the reducing coenzyme, NADPH? oxidative deamination glycolysis the pentose phosphate pathway gluconeogenesis fermentation QUESTION 47
4 Which of the following statements are true? Fructose-2,6-bisphosphate activates glycolysis Inorganic phosphate (that is, P) is required for the function of glycogen phosphorylase Fructokinase is located primarily in liver cells A and C above only All of the above. E. 5. Chylomicrons ... A B. Are assembled from exogenous lipids. Contain tryacylglycerol in the center Are produced in the stomach A and B above A and C above 6. UDP-Glucose pyrophosphorylase.... B. Produces UDP-glucose Needs UTP and glucose-1-phosphate as...
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG for the reaction (K measured at 25 °C)? AG -1680.9 kJ/mol If the concentration of fructose 6-phosphate is adjusted to 1.4 M and that of glucose 6-phosphate is adjusted to 0.75 M, what is AG? AG =-4402.59 kJ/mol Which statements are consistent with the conditions at which AG is measured? The temperature is 273 K. The initial concentrations of reactant and product are 1...
2)
if a single glucose molecule was completely catabolized to 2
pyruvate, then the liver built the 2 pyruvate back to glucose, how
much free energt would be lost?
4) at which glycolysis metabolite does glycogen synthesis amd
the pentose phosphate pathway branch off from?
MIBROS JUJILOR DUE 3/13 at the beginning of class CHOH ресто points) OPOCH HO PHY OH OR equal ts3 > Loc Energy 50 Investmen when Phase n ] ohuoc but at Glucose 1)(6) Fill in...
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