In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net...
In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net equation for the payoff phase of glycolysis?
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glyceraldehyde-3-phosphate + 2 ATP + Pi ---> lactone + NAD+ |
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glucose+2ATP ---> 2Glyceraldehyde-3-Phosphate + 2ADP + 2H+ |
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2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP |
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None of the above |
Homework Answers
Answer: 2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP
During the Pay-off phase of glycolysis, two glyceraldehyde-3-phosphate are the starting substrates. A total of four ADP are utilized in substrate level phosphorylation to produce 4ATP. The 2 Pi (inorganic phosphates) are used in the step where the two Glyceraldehyde-3-phosphate molecules are converted to two molecules of 1,3-bisphosphoglycerate by the enzyme Glyceraldehyde-3-phosphate dehydrogenase. The NADH produced are consumed in fermentation and hence are not present in the overall reaction where pyruvate is converted to lactate by the enzyme lactate dehydrogenase.
All other options show incorrect stoichiometry or substrates/products.
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In skeletal muscle under anaerobic conditions, pyruvate is
further reduced to lactate. What is the net...
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is...
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net equation for the payoff phase of glycolysis? glyceraldehyde-3-phosphate + 2 ATP + Pi ---> lactone + NAD+ glucose+2ATP - 2Glyceraldehyde-3-Phosphate + 2ADP + 2H+ 2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP None of the above QUESTION 14 What is the ratio of carbon-bound hydrogens to carbon of glucose? 6/6 776 12/6 6/7 QUESTION 29 Why would it be advantageous to plants...
QUESTION 12 A eukaryotic cell can use glucose (C6H1206) and hexanoic acid (C6H1402) as fuels for...
QUESTION 12 A eukaryotic cell can use glucose (C6H1206) and hexanoic acid (C6H1402) as fuels for cellular respiration. On the basis of their structural formulas, which of these is more reduced? a hexanoic acid glucose Both are oxidized Cannot be determined QUESTION 13 Which of the substances in question 12 releases less energy per gram on complete combustion to CO2 and H20? Hexanoic acid O glucose Both release the same amount of energy as they are in equilibrium Cannot be...
Skeletal muscle contracting under anaerobic conditions further metabolize the pyruvate produced by glycolysis to lactic acid...
Skeletal muscle contracting under anaerobic conditions further metabolize the pyruvate produced by glycolysis to lactic acid as part of a fermentation reaction.Why is this reaction essential for the anaerobically functioning cell?
2. During exercise, skeletal muscle generates lactate by anaerobic glycolysis. Lactate enters the blood stream and...
2. During exercise, skeletal muscle generates lactate by anaerobic glycolysis. Lactate enters the blood stream and is taken up by the liver, which recycles it back to glucose through gluconeogenesis. This is known as the Cori cycle. Determine the energetic cost of maintaining glucose to the muscle by this mechanism. OPTIONS ARE: -6 -4 -2 0 +2 +4 +6 Pathway ATP generated ATP/GTP consumed Net ATP/GTP Glucose -> lactate Lactate -> glucose Net ATP/GTP
| ATP hydrogen lactate oxygen water anaerobic fermentation NAD+ aerobic pyruvate but may continue in 10....
| ATP hydrogen lactate oxygen water anaerobic fermentation NAD+ aerobic pyruvate but may continue in 10. The complete breakdown of glucose requires anaerobic conditions through the process of formed by glycolysis accepts two 11. During this process, the atoms and is reduced to 12. This reaction regenerates which can then pick up more electrons to keep glycolysis and production going conditions, like when we 13. Fermentation is a way to produce ATP during use our muscles rigorously.
Consider the degradation of glucose to pyruvate by the glycolytic pathway: glucose+2ADP+2Pi+2NAD+→2pyruvate+2ATP+2H2O+2NADH+2H+ Part A Calculate ΔG...
Consider the degradation of glucose to pyruvate by the glycolytic pathway: glucose+2ADP+2Pi+2NAD+→2pyruvate+2ATP+2H2O+2NADH+2H+ Part A Calculate ΔG for this reaction at pH=7.4 and 37 ∘C when the reactants and products are at the concentrations given below. ATP=4.00mM Pi=5.90mM ADP=220μM glucose=5.10 mM pyruvate=64.0 μM NAD+=350μM NADH=14.5μM CO2=15.0torr half reaction E∘′(V) NAD++H++2e− ⟶ NADH −0.315 2pyruvate+6H++4e− ⟶ glucose −0.590 pyruvate+NADH+2H+ ⟶ ethanol+NAD++CO2 ΔG∘′=−64.4kJ/mol ATP+H2O ⟶ ADP+Pi+H+ ΔG∘′=−32.2kJ/mol
Why is the conversion of pyruvate to lactate necessary for glycolysis under anaerobic conditions? Why is...
Why is the conversion of pyruvate to lactate necessary for glycolysis under anaerobic conditions? Why is there no conversion under aerobic conditions? Please explain in detail.
Under anaerobic conditions, mammals turn pyruvate into lactate and yeast turn it into ethanol. Why are...
Under anaerobic conditions, mammals turn pyruvate into lactate and yeast turn it into ethanol. Why are these reactions required? What do these reactions have to do with glycolysis?
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...
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...
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A....
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A. ADPIATP B. ATP/glucose C. glucose/glucose-6 phosphate D. glucose6-phosphate/glucose E. glucose/ATP 21. Which of the following is a net product of glycolysis? A. ATP B. NAD+ C. pyruvate D. CO2 E. A&C 22. Substrate-level phosphorylation occurs in the process of A. Oxidative phosphorylation B. electron transport chain C. glycolysis D. ATP-synthase function E. C&D 23. What should your hypothesis be for "Do yeast produce ethanol...
QUESTION 9 In skeletal muscle under anaerobic conditions, pyruvate is further reduced to lactate. What is the net equation for the payoff phase of glycolysis? glyceraldehyde-3-phosphate + 2 ATP + Pi ---> lactone + NAD+ glucose+2ATP - 2Glyceraldehyde-3-Phosphate + 2ADP + 2H+ 2glyceraldehyde-3-phosphate + 4ADP + 2Pi >2Lactate + 4ATP None of the above QUESTION 14 What is the ratio of carbon-bound hydrogens to carbon of glucose? 6/6 776 12/6 6/7 QUESTION 29 Why would it be advantageous to plants...
QUESTION 12 A eukaryotic cell can use glucose (C6H1206) and hexanoic acid (C6H1402) as fuels for cellular respiration. On the basis of their structural formulas, which of these is more reduced? a hexanoic acid glucose Both are oxidized Cannot be determined QUESTION 13 Which of the substances in question 12 releases less energy per gram on complete combustion to CO2 and H20? Hexanoic acid O glucose Both release the same amount of energy as they are in equilibrium Cannot be...
| ATP hydrogen lactate oxygen water anaerobic fermentation NAD+ aerobic pyruvate but may continue in 10. The complete breakdown of glucose requires anaerobic conditions through the process of formed by glycolysis accepts two 11. During this process, the atoms and is reduced to 12. This reaction regenerates which can then pick up more electrons to keep glycolysis and production going conditions, like when we 13. Fermentation is a way to produce ATP during use our muscles rigorously.
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...
gets reduced 20. glucose + ATP > glucose-6 phosphate +ADP In the above reaction, - A. ADPIATP B. ATP/glucose C. glucose/glucose-6 phosphate D. glucose6-phosphate/glucose E. glucose/ATP 21. Which of the following is a net product of glycolysis? A. ATP B. NAD+ C. pyruvate D. CO2 E. A&C 22. Substrate-level phosphorylation occurs in the process of A. Oxidative phosphorylation B. electron transport chain C. glycolysis D. ATP-synthase function E. C&D 23. What should your hypothesis be for "Do yeast produce ethanol...
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