Homework Answers
Whatever the equation you wrote is absolutely correct except a small mistake that you have written Ribulose-5-Po on the product side, but it should be Ribose-5-P.
Coming to the coefficient 6: It is used because the cycle repeats 6 times.
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Hi , why net reaction in this ppt slide for pentose phosphate pathway multiple to *6...
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
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.
NADP+ NADPHH HC-OH HO-CH HC-OH нс-ОН CH2OPO;? 6PGDH 'Coz CH OH c=0 HC-OH HC-OH CHOPO3 In...
NADP+ NADPHH HC-OH HO-CH HC-OH нс-ОН CH2OPO;? 6PGDH 'Coz CH OH c=0 HC-OH HC-OH CHOPO3 In pentose phosphate pathway, 6-phosphogluconate undergoes oxidation and decarboxylation by 6- phosphogluconate dehydrogenase (6PGDH) to form D-ribulose 5-phosphate. The reaction generates NADPH, as shown in the scheme. (1) Fill the blanks. During the 6PGDH-catalyzed reaction, the A group of carbon (B) of 6-phosphogluconate is oxidized to the group in ribulose 5-phosphate. A: (name of the functional group). B: (carbon numbering) C: (name of the functional...
There are 3 parts to this question (AC) 5. Concerning the pentose phosphate pathway. A In...
There are 3 parts to this question (AC) 5. Concerning the pentose phosphate pathway. A In the nonoxidative phase of the pentose phosphate pathway, from where does the xylulose-5-phosphate come? B. At the end of the nonoxidative portion of the pentose phosphate pathway the result is 2 molecules of fructose-6-phosphate and 1 molecule of glyceraldehyde-3-phosphate Toget this, how many times did the oxidative phase have to run lie, how many glucose-6-phosphate molecules were used? C. How many total NADPH will...
Calvin-Benson Cycle AG0 (kJ/mol) +70.0 Reaction Ribulose-1,5-bisphosphate CO2 H2O 2(3-phosphoglycerate) +H Enzyme Ribulose-1,5-bisphosphate carboxylase oxygenase ЕС...
Calvin-Benson Cycle AG0 (kJ/mol) +70.0 Reaction Ribulose-1,5-bisphosphate CO2 H2O 2(3-phosphoglycerate) +H Enzyme Ribulose-1,5-bisphosphate carboxylase oxygenase ЕС Cofactors Regulation Notes 4,1.1.39 Mg2, cobalamin (B,2) coenzyme-A, NADH H Fe-S clusters, and possibly ATP Ribulose-1,5-bisphosphate (RUBP) behaves as an inhibitor by strongly binding to the activated form of the enzyme (ЕСM) Rubisco activase catalyzes the dissociation of RuBP from ECM Rubisco is very inefficient as a carboxylase It is probably the most abundant protein on earth; up to 50% of leaf protein 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...
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...
Glycolysis activity 1: Metabolic pathway puzzle Try to complete the activity without using the textbook. 1....
Glycolysis activity 1: Metabolic pathway puzzle Try to complete the activity without using the textbook. 1. Slides 4 and 5 show the 10 reactions for glycolysis, but some of the molecules are missing. Draw the missing molecules in the proper place (on the handout). The missing molecules are shown on the next slide, you have to use the clues on the handout and your organic chemistry knowledge to figure out where each molecule belongs. 3. In the red dotted boxes...
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
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.
NADP+ NADPHH HC-OH HO-CH HC-OH нс-ОН CH2OPO;? 6PGDH 'Coz CH OH c=0 HC-OH HC-OH CHOPO3 In pentose phosphate pathway, 6-phosphogluconate undergoes oxidation and decarboxylation by 6- phosphogluconate dehydrogenase (6PGDH) to form D-ribulose 5-phosphate. The reaction generates NADPH, as shown in the scheme. (1) Fill the blanks. During the 6PGDH-catalyzed reaction, the A group of carbon (B) of 6-phosphogluconate is oxidized to the group in ribulose 5-phosphate. A: (name of the functional group). B: (carbon numbering) C: (name of the functional...
There are 3 parts to this question (AC) 5. Concerning the pentose phosphate pathway. A In the nonoxidative phase of the pentose phosphate pathway, from where does the xylulose-5-phosphate come? B. At the end of the nonoxidative portion of the pentose phosphate pathway the result is 2 molecules of fructose-6-phosphate and 1 molecule of glyceraldehyde-3-phosphate Toget this, how many times did the oxidative phase have to run lie, how many glucose-6-phosphate molecules were used? C. How many total NADPH will...
Calvin-Benson Cycle AG0 (kJ/mol) +70.0 Reaction Ribulose-1,5-bisphosphate CO2 H2O 2(3-phosphoglycerate) +H Enzyme Ribulose-1,5-bisphosphate carboxylase oxygenase ЕС Cofactors Regulation Notes 4,1.1.39 Mg2, cobalamin (B,2) coenzyme-A, NADH H Fe-S clusters, and possibly ATP Ribulose-1,5-bisphosphate (RUBP) behaves as an inhibitor by strongly binding to the activated form of the enzyme (ЕСM) Rubisco activase catalyzes the dissociation of RuBP from ECM Rubisco is very inefficient as a carboxylase It is probably the most abundant protein on earth; up to 50% of leaf protein 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...
Glycolysis activity 1: Metabolic pathway puzzle Try to complete the activity without using the textbook. 1. Slides 4 and 5 show the 10 reactions for glycolysis, but some of the molecules are missing. Draw the missing molecules in the proper place (on the handout). The missing molecules are shown on the next slide, you have to use the clues on the handout and your organic chemistry knowledge to figure out where each molecule belongs. 3. In the red dotted boxes...
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