Which of the following statements about gluconeogenesis is correct? a. Because they form acetyl coA, fatty...
Which of the following statements about gluconeogenesis is correct? a. Because they form acetyl coA, fatty acids can be a substrate for gluconeogenesis. b. The reaction of phosphenolpyruvate carboxykinase is important to replenish the pool of citric acid cycle intermediates. c. The use of GTP as the phosphate donor in the phosphoenolpyruvate carboxykinase reaction provides a link between citric acid cycle activity and gluconeogenesis. d. There is a greater yield of ATP in anaerobic glycolysis than the cost for synthesis of glucose from lactate.
Homework Answers
In human being, the propionate arises form the beta-oxidation of fatty acid acts as substrate for gluconeogenesis. Fat oxidation provides energy (ATP) for gluconeogenesis and also acetyl-CoA to activate pyruvate carboxylase.
Hence option (a) is correct.
Add Answer to:
Which of the following statements about gluconeogenesis is
correct? a. Because they form acetyl coA, fatty...
Describe “hub” molecules acetyl CoA and pyruvate that serve different pathways. Explain metabolic regulation favoring metabolic pathway choices leading to and from hub molecules. Describe how C.A.C. s...
Describe “hub” molecules acetyl CoA and pyruvate that serve
different pathways. Explain metabolic regulation favoring metabolic
pathway choices leading to and from hub molecules. Describe how
C.A.C. serves as a “hub “pathway. Use picture as a reference.
Pyruvate Glucose Fatty acids sterols pyruvate carboxylase Acetyl-CoA PEP carboxykinase Glutamine Citrate Phosphoenolpyruvate (PEP) Proline Arginine Oxaloacetate PEP carboxylase Citric acid cycle a-Ketoglutarate Malate Glutamate Aspartate Asparagine Serine Glycine Cysteine malic enzyme Purines Succinyl-CoA Phenylalanine Pyrimidines Pyruvate Tyrosine Tryptophan Porphyrins heme Figure 16-16...
16. How many ATP's are produced per Acetyl-CoA? 17. How many ATP's (include ATP equivalents) and...
16. How many ATP's are produced per Acetyl-CoA? 17. How many ATP's (include ATP equivalents) and CO2 molecules are produced per glucose operating under aerobic? Anabolic and Catalytic Functions of the Citric Acid Cycle 18. Use Figure 14-16 to describe how the Citric Acid Cycle supplies the precursors for the synthesis of amino acids, glucose, and fatty acids.
Please help me with this Nutrition homework assignment for my nursing class. It involves proteins Answer...
Please help me with this Nutrition homework assignment for my nursing class. It involves proteins Answer Choices: a. citric acid / Krebs cycle b. glycogenesis c. electron transport chain d. glycogenolysis e. lipogenesis f. lipolysis g. beta oxidation h. acetyl CoA i. gluconeogenesis j. glycolysis Answer Fill in: (some filled in already) 1. The conversion of glucose to pyruvate J 2. The conversion of fatty acids to acetyl CoA 3. Oxaloacetate and Citrate (citric acid) are intermediates in A 4....
Glycolysis and gluconeogenesis are concurrent and complementary metabolic pathways. Which of the following IS NOT TRUE...
Glycolysis and gluconeogenesis are concurrent and complementary metabolic pathways. Which of the following IS NOT TRUE a) glycolysis and gluconeogenesis regulate the availability of glucose in the cell b) all enzymes and intermediates used in glycolysis and gluconeogenesis are the same, glucose, respectively anabolizes acetyl-CoA and pyruvate to glucose. fructose 16P into fructose 6P (final step) in gluconeogenesis uses pathway specific ) glycolysis catabolizes glucose to pyruvate and acetyl-CoA and gluconeogenesis d) the conversion of pyruvate into phosphoenolpyruvate (first step)...
Indicate all of the following statements that are true. Options: 1. ATP is an indirect product...
Indicate all of the following statements that are true. Options: 1. ATP is an indirect product of the citric acid cycle 2. Acetyl CoA can increase the pool of citric acid cycle intermediates 3. Fatty acids can increase the pool of citric acid cycle intermediates 4. ADP inhibits α-ketoglutarate dehydrogenase 5. The pool of mitochondrial oxaloacetate can be increased by pyruvate 6. All enzymes of the citric acid cycle are found soluble and free in the mitochondrial matrix
1.Predict the effect of a large amount of acetyl-CoA on the activity of pyruvate dehydrogenase and...
1.Predict the effect of a large amount of acetyl-CoA on the activity of pyruvate dehydrogenase and the rate of glycolysis. Note: pyruvate dehydrogenase is the enzyme that catalyzes the formation of acetyl-CoA from pyruvate. a. Pyruvate dehydrogenase activity will decrease while the rate of glycolysis will increase. b. Both pyruvate dehydrogenase activity and the rate of glycolysis will decrease. c. Pyruvate dehydrogenase activity will increase while the rate of glycolysis will decrease. d. The rate of glycolysis will increase, thereby,...
Steps 6 and 8 of the citric acid cycles are _____ reactions. phosphate-transfer hydrolysis oxidation–reduction carboxylation...
Steps 6 and 8 of the citric acid cycles are _____ reactions. phosphate-transfer hydrolysis oxidation–reduction carboxylation The 4-carbon intermediates of the citric acid cycle can be used for _____. gluconeogenesis fatty acid synthesis nucleotide synthesis glycolysis Additional oxaloacetate for the citric acid cycle can be generated in one step from pyruvate glyoxylate citrate acetyl-CoA ΔG°' for a reaction is 800 J · mol–1. What is ΔG at 37°C when the ratio of product to reactant concentrations is 0.6? 640 J...
Below are statements regarding the body's inability to convert fat to carbohydrates. Select the statements that...
Below are statements regarding the body's inability to convert fat to carbohydrates. Select the statements that are true. There is more than one correct answer. Select all the correct answers. The acetyl CoA that is produced from the oxidation of fatty acids enters the citric acid cycle, but does not lead to a net gain of pyruvate. Metabolism of odd-chain fatty acids yields propionyl CoA, which is converted to succinyl CoA and can enter the citric acid cycle. The decarboxylation...
Which of the following is not a net product of the citric acid cycle for each...
Which of the following is not a net product of the citric acid cycle for each molecule of pyruvate generated in glycolysis? Select one: a. 1 ATP (GTP) b. 1 acetyl coA c. 3 NADH d. 1 FADH2 Question 2 Which of the following is NOT an end product for an acetyl group that enters the citric acid cycle? Select one: a. ATP b. NADH c. FADH2 d. oxaloacetate Question 3 Once they have been processed through the citric acid...
Glycolysis, fatty acid oxidation, and amino acid degradation can generate which intermediate, common to all hree...
Glycolysis, fatty acid oxidation, and amino acid degradation can generate which intermediate, common to all hree catabolic pathways, which is a substrate for citrate synthase, the first step in the citric acid cycle a. oxaloacetate b. pyruvate c. ATP d. NAPH e. Acetyl-coa
Describe “hub” molecules acetyl CoA and pyruvate that serve
different pathways. Explain metabolic regulation favoring metabolic
pathway choices leading to and from hub molecules. Describe how
C.A.C. serves as a “hub “pathway. Use picture as a reference.
Pyruvate Glucose Fatty acids sterols pyruvate carboxylase Acetyl-CoA PEP carboxykinase Glutamine Citrate Phosphoenolpyruvate (PEP) Proline Arginine Oxaloacetate PEP carboxylase Citric acid cycle a-Ketoglutarate Malate Glutamate Aspartate Asparagine Serine Glycine Cysteine malic enzyme Purines Succinyl-CoA Phenylalanine Pyrimidines Pyruvate Tyrosine Tryptophan Porphyrins heme Figure 16-16...
16. How many ATP's are produced per Acetyl-CoA? 17. How many ATP's (include ATP equivalents) and CO2 molecules are produced per glucose operating under aerobic? Anabolic and Catalytic Functions of the Citric Acid Cycle 18. Use Figure 14-16 to describe how the Citric Acid Cycle supplies the precursors for the synthesis of amino acids, glucose, and fatty acids.
Glycolysis and gluconeogenesis are concurrent and complementary metabolic pathways. Which of the following IS NOT TRUE a) glycolysis and gluconeogenesis regulate the availability of glucose in the cell b) all enzymes and intermediates used in glycolysis and gluconeogenesis are the same, glucose, respectively anabolizes acetyl-CoA and pyruvate to glucose. fructose 16P into fructose 6P (final step) in gluconeogenesis uses pathway specific ) glycolysis catabolizes glucose to pyruvate and acetyl-CoA and gluconeogenesis d) the conversion of pyruvate into phosphoenolpyruvate (first step)...
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