Homework Answers
A. It is formed in intermediate in the pentose phosphate pathway.i.e it is formed from ribose5-phosphate in non oxidative phase.
B. 3 times. i.e. Dehydrogenation,hydrolysis,decarboxylation.
C. two molecules of NADPH
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There are 3 parts to this question (AC) 5. Concerning the pentose phosphate pathway. A In...
Hi , why net reaction in this ppt slide for pentose phosphate pathway multiple to *6...
Hi
, why net reaction in this ppt slide for pentose phosphate pathway
multiple to *6 ?
I think it should be like this :
The net reaction 6G-6-P + 12NADP+ → 6R-5-P + 12NADPH + 6CO2 oxidative reactions of pentose phosphate pathway Ribose Sedoheptulose Fructose Glucose 5-phosphate 7-phosphate 6-phosphate 6-phosphate Isomerase 1 phosphohexose Isomerase epimerase 1 ſtransketolase transaldolase Xylulose Glyceraldehyde Erythrose Fructose 5.phosphate 3.phosphate 4-phosphate 6-phosphate fructose 1,6- bisphosphatase aldolase transketolase triose phosphate Xylulose Isomerase 5-phosphate Glyceraldehyde 3-phosphate Figure...
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...
QUESTION 2 (A) The pentose phosphate pathway is comprised of two phases. Why are both phases...
QUESTION 2 (A) The pentose phosphate pathway is comprised of two phases. Why are both phases necessary for the survival of the cell? (2pts) (B) In the non-oxidative phase of the pentose phosphate pathway ribose 5-phosphate is converted to fructose 6-phosphate. Why does this pathway require so many enzymatic steps? What benefit does each step provide? (4 pts) (C) Many cancer drugs are effective because they reduce cell proliferation by reducing the amount of base material needed for cell division...
The reversible interconversion reactions of the pentose phosphate pathway can operate either to converi Map pentoses...
The reversible interconversion reactions of the pentose phosphate pathway can operate either to converi Map pentoses to hexoses (when operating in an oxidative mode to generate NADPH) or to convert hexoses to pentoses (when operating in a non-oxidative mode to generate pentoses for nucleic acid synthesis). Two key enzymes in these interconversion reactions are transaldolase and transketolase, and a key intermediate is the seven-carbon sugar sedoheptulose-7-phosphate. Identify the products formed from sedoheptulose-7-phosphate and glyceraldehyde-3-phosphate with each of these enzymes.
Pentose Phosphate Pathway: 3 Glucose-6-P (Hexose Monophosphate Shunt 3 NADP 3 6-P-gluconate 3 CO Fructose-6-P xylose...
Pentose Phosphate Pathway: 3 Glucose-6-P (Hexose Monophosphate Shunt 3 NADP 3 6-P-gluconate 3 CO Fructose-6-P xylose -5-P S sedoheptulose-7-P 3 Ribulose -5-P Ribose -5-P Glyceraldehyde-3-P Erythrose-4-P Xylose -5-P tronsketolose Fructose-6-P Glyceraldehyde-3-P
Which will produce more ATP: i). Three molecules of glucose that are metabolized by glycolysis to...
Which will produce more ATP: i). Three molecules of glucose that are metabolized by glycolysis to yield pyruvate orii). Three molecules of glucose that enter the Pentose Phosphate pathway and are converted to two molecules of fructose-6-phosphate and one molecule of glyceraldehyde-3-phosphate, which can then enter glycolysis. Explain your metabolic calculations/logic. NOTE: Do not consider ATP equivalents from NADH or NADPH in your answer.
Metabolic Pathway Engineering Problem Set 5 Engineering a Fermentation System: Fermentation of plant matter to produce...
Metabolic Pathway Engineering Problem Set 5 Engineering a Fermentation System: Fermentation of plant matter to produce ethanol for fuel is one potential method for reducing the use of fossil fuels and thus the CO2 emissions that lead to global warming. Many microorganisms can break down cellulose then ferment the glucose to ethanol. However, many potential cellulose sources, including agricultural residues and switchgrass, also contain substantial amounts of arabinose, which is not as easily fermented. Escherichia coli is capable of fermenting...
Please help me with Metabolism 25 marks question. Thank you very much. (a) The pentose phosphate...
Please help me with Metabolism 25 marks question. Thank
you very much.
(a) The pentose phosphate pathway seems like a biologically
wasteful process.
(i) Explain how the pathway might be wasteful compared to other
carbon metabolic pathways. (2 marks)
(ii) Explain the importance of the pentose phosphate pathway. (4
marks)
(b) Excessive nitrogen needs to be excreted from the body.
Describe the biochemical pathway(s) for nitrogen elimination. (8
marks)
(c) The following are two glycogen molecules from two different
individuals,...
12/25 answered Click on glycolysis if would like to review it in details. Glucose Preparatory phase...
12/25 answered Click on glycolysis if would like to review it in details. Glucose Preparatory phase first ATP Phosphorylation of glucos and its conversion to glyceraldehyde 3-phosphat Priming © > ADP Glucose 6-phosphate 1-0 Hz Hexokinase ΝΟΗ Η e Phosphohexose isomerase Fructose 6-phosphate ATP (8 Phospho- fructokinase-1 primins и он -OCH, CH-OH HOH он и ©--CH, CH-0- Кинон Aldolase ADP Fructose 1,6-bisphosphate (6) Triose phosphate somerase eleava oferte suar phosphate to two carbon sur phosphate Glyceraldehyde 3-phosphate udehyde a phosphate...
I am confused with this glucose structure, Can you answer the question asked on the right...
I am confused with this glucose structure, Can you answer the
question asked on the right side of the page, please?
Glucose Hexokinase ATP Glucose 6-phosphate Phosphoglucose isomerase Fructose 6-phosphate Phosphofructo- ATP kinase-1 ADP Dihydroxyacetone phosphate Fructose 1,6-bisphosphate Aldolase Triose 5 phosphate Glyceraldehyde isomerase 3-phosphate (2 molecules ) Glyceraldehyde 2 NAD+ +2P, 3-phosphate 2 NADH + 2H dehydrogenase I 1,3-Bisphosphoglycerate (2 molecules) 7 Phosphoglycerate 2ADP kinase 2 ATP 3-Phosphoglycerate (2 molecules) Phosphoglycero- mutase 2-Phosphoglycerate (2 molecules) Enolase. > 2H2O Phosphoenolpyruvate...
Hi
, why net reaction in this ppt slide for pentose phosphate pathway
multiple to *6 ?
I think it should be like this :
The net reaction 6G-6-P + 12NADP+ → 6R-5-P + 12NADPH + 6CO2 oxidative reactions of pentose phosphate pathway Ribose Sedoheptulose Fructose Glucose 5-phosphate 7-phosphate 6-phosphate 6-phosphate Isomerase 1 phosphohexose Isomerase epimerase 1 ſtransketolase transaldolase Xylulose Glyceraldehyde Erythrose Fructose 5.phosphate 3.phosphate 4-phosphate 6-phosphate fructose 1,6- bisphosphatase aldolase transketolase triose phosphate Xylulose Isomerase 5-phosphate Glyceraldehyde 3-phosphate Figure...
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...
QUESTION 2 (A) The pentose phosphate pathway is comprised of two phases. Why are both phases necessary for the survival of the cell? (2pts) (B) In the non-oxidative phase of the pentose phosphate pathway ribose 5-phosphate is converted to fructose 6-phosphate. Why does this pathway require so many enzymatic steps? What benefit does each step provide? (4 pts) (C) Many cancer drugs are effective because they reduce cell proliferation by reducing the amount of base material needed for cell division...
The reversible interconversion reactions of the pentose phosphate pathway can operate either to converi Map pentoses to hexoses (when operating in an oxidative mode to generate NADPH) or to convert hexoses to pentoses (when operating in a non-oxidative mode to generate pentoses for nucleic acid synthesis). Two key enzymes in these interconversion reactions are transaldolase and transketolase, and a key intermediate is the seven-carbon sugar sedoheptulose-7-phosphate. Identify the products formed from sedoheptulose-7-phosphate and glyceraldehyde-3-phosphate with each of these enzymes.
Pentose Phosphate Pathway: 3 Glucose-6-P (Hexose Monophosphate Shunt 3 NADP 3 6-P-gluconate 3 CO Fructose-6-P xylose -5-P S sedoheptulose-7-P 3 Ribulose -5-P Ribose -5-P Glyceraldehyde-3-P Erythrose-4-P Xylose -5-P tronsketolose Fructose-6-P Glyceraldehyde-3-P
Please help me with Metabolism 25 marks question. Thank
you very much.
(a) The pentose phosphate pathway seems like a biologically
wasteful process.
(i) Explain how the pathway might be wasteful compared to other
carbon metabolic pathways. (2 marks)
(ii) Explain the importance of the pentose phosphate pathway. (4
marks)
(b) Excessive nitrogen needs to be excreted from the body.
Describe the biochemical pathway(s) for nitrogen elimination. (8
marks)
(c) The following are two glycogen molecules from two different
individuals,...
12/25 answered Click on glycolysis if would like to review it in details. Glucose Preparatory phase first ATP Phosphorylation of glucos and its conversion to glyceraldehyde 3-phosphat Priming © > ADP Glucose 6-phosphate 1-0 Hz Hexokinase ΝΟΗ Η e Phosphohexose isomerase Fructose 6-phosphate ATP (8 Phospho- fructokinase-1 primins и он -OCH, CH-OH HOH он и ©--CH, CH-0- Кинон Aldolase ADP Fructose 1,6-bisphosphate (6) Triose phosphate somerase eleava oferte suar phosphate to two carbon sur phosphate Glyceraldehyde 3-phosphate udehyde a phosphate...
I am confused with this glucose structure, Can you answer the
question asked on the right side of the page, please?
Glucose Hexokinase ATP Glucose 6-phosphate Phosphoglucose isomerase Fructose 6-phosphate Phosphofructo- ATP kinase-1 ADP Dihydroxyacetone phosphate Fructose 1,6-bisphosphate Aldolase Triose 5 phosphate Glyceraldehyde isomerase 3-phosphate (2 molecules ) Glyceraldehyde 2 NAD+ +2P, 3-phosphate 2 NADH + 2H dehydrogenase I 1,3-Bisphosphoglycerate (2 molecules) 7 Phosphoglycerate 2ADP kinase 2 ATP 3-Phosphoglycerate (2 molecules) Phosphoglycero- mutase 2-Phosphoglycerate (2 molecules) Enolase. > 2H2O Phosphoenolpyruvate...
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