After the glycerol is converted into DHAP, it is isomerized into GAP, which can then either...
After the glycerol is converted into DHAP, it is isomerized into
GAP, which can then either proceed down glycolysis to pyruvate or
up gluconeogenesis to glucose
Draw the reaction by which glycerol (from fats) can be metabolized
into pyruvate or synthesized into glucose.
Homework Answers
Glycerol is a fatty substance that act as a source for energy by processing through glycolysis or through gluconeogenesis.
Generally G3P is synthesized by reduction of DHAP with the help G3P dehydrogenase.From glycerol G3P is produced in which a phosphate group is added to glycerol with the help of enzyme Glycerol kinase.
Below images shows the reaction of glycerol how it gets metabolized to pyruvate or glucose.
Hope this will help you to resolve your doubts:)
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After the glycerol is converted into DHAP, it is isomerized into
GAP, which can then either...
In another key reaction in glycolysis, phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): Because deltaG' is...
In another key reaction in glycolysis, phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): Because deltaG' is positive, the equilibrium lies to the left. Calculate the equilibrium constant, and the equilibrium fraction of GAP from the above, at 37degreeC. Express your answer using two significant figures. In the cell, depletion of GAP makes the reaction proceed. What will deltaG be if the concentration of GAP is always kept at 1/100 of the concentration of DHAP? Express your answer to two significant...
In another key reaction in glycolysis, dihydroxyacetone phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): The equilibrium...
In another key reaction in glycolysis, dihydroxyacetone
phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate
(GAP):
The equilibrium constant is 5.4×10−2.
Calculate the equilibrium fraction of GAP from the above, at 37
∘C.
CH2OH HC-OH ΔGor = +7.5 kJ/mol CH2OPO22 CH2OPO2 GAP DHAP
000000 5. Some bacteria make an enzyme that can convert dihydroxyacetone to dihydroxyacetone phosphate (DHAP). How...
000000 5. Some bacteria make an enzyme that can convert dihydroxyacetone to dihydroxyacetone phosphate (DHAP). How would this help these cells yield energy? Hint: look at the diagram of glycolysis to the right Glucose Ister Unstable 0000000- Fructose-1,6-bisphosphat DHAP glyceroldehyde- • 3-phosphate - -- - - - - - All the DHAP MAD, will be converted into gyaraldehyde RAM 3-phosphate ADP Happens Pyruvate 6. If a cell respiring on glucose runs out of oxygen and/or other electron acceptors, what happens...
Which precursors can be used to make glucose in gluconeogenesis? amino acids, pyruvate, lactic acid, and...
Which precursors can be used to make glucose in gluconeogenesis? amino acids, pyruvate, lactic acid, and fatty acids b. amino acids, pyruvate, and fatty acids amino acids, pyruvate, lactic acid, and glycerol d. pyruvate, lactic acid, glycerol, and fatty acids & a. C. is the biosynthetic pathway that assembles glucose into branch chains of 9. glycogen Glycolysis b. Gluconeogenesis Glycogenolysis d. Glycogenesis a. c. 10. Which hormone favors anabolic metabolic pathways? a. insulin b. glucagon c. cortisol d. epinephrine 11....
Glycolysis breaks glucose down into dihydroxyacetone phosphate and glyceraldehyde-3-phosphate, but only glyceraldehyde-3-phosphate can be converted to...
Glycolysis breaks glucose down into dihydroxyacetone phosphate and glyceraldehyde-3-phosphate, but only glyceraldehyde-3-phosphate can be converted to pyruvate. Why is it that we can still obtain two molecules of pyruvate from a glucose molecule despite not being able to make pyruvate from dihydroxyacetone phosphate?
Please help and explain answers! 1. In a series of chemical reactions, glucose is first converted...
Please help and explain answers! 1. In a series of chemical reactions, glucose is first converted into __________. a) pyruvate b) glycerol c) acetyl CoA 2. In the process of glycose breaking down, hydrogen and electrons are carried by coenzymes made from the ___. a) B vitamin biotin b) B vitamin niacin c) vitamin thiamine 3. In the Cori Cycle, the conversion of lactate to glycose by anaerobic glycolysis in the muscle requires energy from ___________. a) acetyl CoA b)...
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.
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...
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized...
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Do expect the cell to produce more ATP from one glucose molecule or from one fatty...
Do expect the cell to produce more ATP from one glucose molecule or from one fatty acid molecule? Explain your answer. Indicate whether the following statements are true or false. If a statement is false, explain why it is false The proteins of the electron-transport chain remove a pair of high-energy electrons from the cofactors, NADH and FADH_2, after which the electrons move across the inner mitochondrial membrane to maintain the voltage gradient. Gluconeogenesis is a linear reaction pathway that...
In another key reaction in glycolysis, phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate (GAP): Because deltaG' is positive, the equilibrium lies to the left. Calculate the equilibrium constant, and the equilibrium fraction of GAP from the above, at 37degreeC. Express your answer using two significant figures. In the cell, depletion of GAP makes the reaction proceed. What will deltaG be if the concentration of GAP is always kept at 1/100 of the concentration of DHAP? Express your answer to two significant...
In another key reaction in glycolysis, dihydroxyacetone
phosphate (DHAP) is isomerized into glyceraldehyde-3-phosphate
(GAP):
The equilibrium constant is 5.4×10−2.
Calculate the equilibrium fraction of GAP from the above, at 37
∘C.
CH2OH HC-OH ΔGor = +7.5 kJ/mol CH2OPO22 CH2OPO2 GAP DHAP
000000 5. Some bacteria make an enzyme that can convert dihydroxyacetone to dihydroxyacetone phosphate (DHAP). How would this help these cells yield energy? Hint: look at the diagram of glycolysis to the right Glucose Ister Unstable 0000000- Fructose-1,6-bisphosphat DHAP glyceroldehyde- • 3-phosphate - -- - - - - - All the DHAP MAD, will be converted into gyaraldehyde RAM 3-phosphate ADP Happens Pyruvate 6. If a cell respiring on glucose runs out of oxygen and/or other electron acceptors, what happens...
Which precursors can be used to make glucose in gluconeogenesis? amino acids, pyruvate, lactic acid, and fatty acids b. amino acids, pyruvate, and fatty acids amino acids, pyruvate, lactic acid, and glycerol d. pyruvate, lactic acid, glycerol, and fatty acids & a. C. is the biosynthetic pathway that assembles glucose into branch chains of 9. glycogen Glycolysis b. Gluconeogenesis Glycogenolysis d. Glycogenesis a. c. 10. Which hormone favors anabolic metabolic pathways? a. insulin b. glucagon c. cortisol d. epinephrine 11....
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Do expect the cell to produce more ATP from one glucose molecule or from one fatty acid molecule? Explain your answer. Indicate whether the following statements are true or false. If a statement is false, explain why it is false The proteins of the electron-transport chain remove a pair of high-energy electrons from the cofactors, NADH and FADH_2, after which the electrons move across the inner mitochondrial membrane to maintain the voltage gradient. Gluconeogenesis is a linear reaction pathway that...
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