If glucose is labelled at carbon 3, which carbon of glyceraldehyde -3-phosphate would be labelled? a....
If glucose is labelled at carbon 3, which carbon of glyceraldehyde -3-phosphate would be labelled? a. 1b. 2c. 3d. 4e. it wouldnt
6. If glucose is labelled at carbon 6, which carbon of lactate could be labelled? a. 1 b. 2 c. 3 d. 4 e. it wouldnt
Please show how you go about it. TY in advance
7. How many net ATP’s is the following set of reactions worth? a glucose is made into GLYCOGEN then phosphorylysed off the glycogen and made into two pyruvates
a. 1 b. 2 c. 3 d. 4 e. 0 (or negative value
Homework Answers
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If glucose is labelled at carbon 3, which carbon of
glyceraldehyde -3-phosphate would be labelled? a....
GLYCOLYSIS Glucose-8 phosphate + Glucose 2 Fructose-6-phosphate 3 Fructose-1,6-biphosphate Dihydroxy-acetone-phosphate 5 Glyceraldehyde-3-phosphate VT6 2 (1,3-biphosphoglycerate) 7...
GLYCOLYSIS Glucose-8 phosphate + Glucose 2 Fructose-6-phosphate 3 Fructose-1,6-biphosphate Dihydroxy-acetone-phosphate 5 Glyceraldehyde-3-phosphate VT6 2 (1,3-biphosphoglycerate) 7 3-phosphoglycerate 2-phosphoglycerate 9 phosphoenolpyruvate 10 Lactate Pyruvate Which two reactions of glycolysis requires an investment of ATP energy, and which enzyme catalyzes each reaction? Reaction Number Enzyme Reaction Number Enzyme Which two reactions of glycolysis generate energy in the form of ATP, and which enzyme catalyzes each reaction? Reaction Number Enzyme Reaction Number Enzyme Which glycolytic reaction generates energy in the form of NADH,...
35) The overall reaction of glyceraldehyde 3-phosphate dehydrogenase (GAP glyceraldehyde 3-phosphate + NAD+ + P =...
35) The overall reaction of glyceraldehyde 3-phosphate dehydrogenase (GAP glyceraldehyde 3-phosphate + NAD+ + P = 1,3-bisphosphoglycerate + NADH GAPDH couples together two reactions with favorable (AG'°-50 kj/mol) and unfavorable (AG' +50 kJ/mol) Gibbs free energies, respectively. a) (6 pts) Write the balanced chemical equations for the two separate reactions. b) (6 pts) Draw the structure of the thiohemiacetal intermediate and show the mechanism for generating the acyl thioester intermediate. 36) (4 pts) Under anaerobic conditions, lactic acid fermentation regenerates...
In glycolysis, how is glyceraldehyde 3 phosphate converted to 1,3 bisphosphoglycerate? Pils used to provide phosphate...
In glycolysis, how is glyceraldehyde 3 phosphate converted to 1,3 bisphosphoglycerate? Pils used to provide phosphate ATP is used to provide phosphate Phosphate is transferred from fructose 2,6 bisphosphate NADPH provides the phosphate This reaction does not occur in glycolysis, the question is invalid D Question 8 During anaerobic conditions ... (Select all that apply) Glycolysis risks failing due to lack of a key metabolite. NADH is consumed. Lactate dehydrogenase ceases to function. Pyruvate Dehydrogenase Accelerates. Question 9 Given the...
1. 2. 3. 4. Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate...
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Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
5. How many net ATPS may be made from a glucose-6-phosphate directly in glycolysis? а. 1...
5. How many net ATPS may be made from a glucose-6-phosphate directly in glycolysis? а. 1 b. 2 с. 3 d. 4 е. 6 1. How many net ATP are involved in glycolysis of one glucose completely to pyruvates then the gluconeogenesis of those pyruvates back to glucose? a. +2 b. -2 c. -4 d. -6 e. +4 7. How many net ATP are involved in glycolysis of one glucose completely to two PEP then the gluconeogenesis of those PEP...
In chloroplasts, glyceraldehyde 3-phosphate dehydrogenase uses NADPH as a cofactor in the synthesis of glucose. In...
In chloroplasts, glyceraldehyde 3-phosphate dehydrogenase uses NADPH as a cofactor in the synthesis of glucose. In cytoplasmic gluconeogenesis, however, the isozyme of this dehydrogenase uses NADH. Why is it advantageous for the enzyme in the chloroplast to use NADPH? : NADPH is abundant in chloroplasts, because it is generated by the light reactions. NADPH provides more reducing power than NADH in cells. NADPH is harmful to chloroplasts when levels become too high. The presence of NADH increases the rate of...
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...
In the formation of the thioester in the oxidation of Glyceraldehyde-3-phosphate by Glyceraldehyde-3-dehydrogenase which of the...
In the formation of the thioester in the oxidation of Glyceraldehyde-3-phosphate by Glyceraldehyde-3-dehydrogenase which of the following statements is true? A) The thioester intermediate is more stable (lower free energy) than the reactant B) the thioester intermediate is less stable (higher free energy) than the reactant C) the thioester intermediate is more stable (lower free energy) than the product D) In the organic chemistry lab, thioester allows for the formation of acyl-phosphate E) in the organic chemistry lab, thoiester formation...
14. Which of the following sugars could be transformed into fructose 6-phosphate if glucose and glucose...
14. Which of the following sugars could be transformed into fructose 6-phosphate if glucose and glucose phosphates were no longer available? A. Galactose B. Mannose C. Lactose D. Amylose E. Trehalose 15. Which pathway leads to a loss of carbon, which is undesirable in organisms that cannot fix carbon? A. Glycolysis B. Gluconeogenesis C. Pentose phosphate, nonoxidative phase D. Pentose phosphate, oxidative phase E. None of the above.
1. Which of the folowing statements about glucokinase and hexokinase (that catalyze the same reaction) is...
1. Which of the folowing statements about glucokinase and hexokinase (that catalyze the same reaction) is TRUE? A. Glucokinase has a higher capacity than hexokinase to convert glucose to glucose 6 phosphate B. Hexokinase is only active in the liver where it can utilize multiple hexoses C. While glucokinase requires ATP for its action, hexokinase requires GTP D. Glucokinase can act on multiple glucose-like sugars (such as galactose) E. Hexokinase has a higher Km and easily handles all the glucose...
GLYCOLYSIS Glucose-8 phosphate + Glucose 2 Fructose-6-phosphate 3 Fructose-1,6-biphosphate Dihydroxy-acetone-phosphate 5 Glyceraldehyde-3-phosphate VT6 2 (1,3-biphosphoglycerate) 7 3-phosphoglycerate 2-phosphoglycerate 9 phosphoenolpyruvate 10 Lactate Pyruvate Which two reactions of glycolysis requires an investment of ATP energy, and which enzyme catalyzes each reaction? Reaction Number Enzyme Reaction Number Enzyme Which two reactions of glycolysis generate energy in the form of ATP, and which enzyme catalyzes each reaction? Reaction Number Enzyme Reaction Number Enzyme Which glycolytic reaction generates energy in the form of NADH,...
35) The overall reaction of glyceraldehyde 3-phosphate dehydrogenase (GAP glyceraldehyde 3-phosphate + NAD+ + P = 1,3-bisphosphoglycerate + NADH GAPDH couples together two reactions with favorable (AG'°-50 kj/mol) and unfavorable (AG' +50 kJ/mol) Gibbs free energies, respectively. a) (6 pts) Write the balanced chemical equations for the two separate reactions. b) (6 pts) Draw the structure of the thiohemiacetal intermediate and show the mechanism for generating the acyl thioester intermediate. 36) (4 pts) Under anaerobic conditions, lactic acid fermentation regenerates...
In glycolysis, how is glyceraldehyde 3 phosphate converted to 1,3 bisphosphoglycerate? Pils used to provide phosphate ATP is used to provide phosphate Phosphate is transferred from fructose 2,6 bisphosphate NADPH provides the phosphate This reaction does not occur in glycolysis, the question is invalid D Question 8 During anaerobic conditions ... (Select all that apply) Glycolysis risks failing due to lack of a key metabolite. NADH is consumed. Lactate dehydrogenase ceases to function. Pyruvate Dehydrogenase Accelerates. Question 9 Given the...
1.
2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
5. How many net ATPS may be made from a glucose-6-phosphate directly in glycolysis? а. 1 b. 2 с. 3 d. 4 е. 6 1. How many net ATP are involved in glycolysis of one glucose completely to pyruvates then the gluconeogenesis of those pyruvates back to glucose? a. +2 b. -2 c. -4 d. -6 e. +4 7. How many net ATP are involved in glycolysis of one glucose completely to two PEP then the gluconeogenesis of those PEP...
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...
14. Which of the following sugars could be transformed into fructose 6-phosphate if glucose and glucose phosphates were no longer available? A. Galactose B. Mannose C. Lactose D. Amylose E. Trehalose 15. Which pathway leads to a loss of carbon, which is undesirable in organisms that cannot fix carbon? A. Glycolysis B. Gluconeogenesis C. Pentose phosphate, nonoxidative phase D. Pentose phosphate, oxidative phase E. None of the above.
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