Describe the steps involved in converting glycerol into triacylglycerol. Explain the roles of the citrate shuttle...
- Describe the steps involved in converting glycerol into triacylglycerol.
- Explain the roles of the citrate shuttle with regards to the fat synthesis pathway by describing how acetyl groups are transported into the cytosol and the paths the products of the cytosolic cleavage reaction take.
- As in glycolysis and the degradation of glucose, the degradation of fatty acids also requires an initial investment of ATP energy. State the reaction or reactions where ATP energy is needed before fatty acids can be oxidized.
Homework Answers
1mole of Triacylglycerol
undergo lipolysis in presence of enzyme lipase and 3 moles of water
to produce 1 mole of glycerol and 3 moles of fatty acid .
Add Answer to:
Describe the steps involved in converting glycerol into
triacylglycerol.
Explain the roles of the citrate shuttle...
Explain how the Cori cycle leads to the regeneration of NAD+and production of glucose for muscles...
Explain how the Cori cycle leads to the regeneration of NAD+and production of glucose for muscles with an active glycolysis pathway. As in glycolysis and the degradation of glucose, the degradation of fatty acids also requires an initial investment of ATP energy. State the reaction or reactions where ATP energy is needed before fatty acids can be oxidized.
De Novo lipogenesis ______ directly by the citrate shuttle, which increases the cytosolic levels of _______...
De Novo lipogenesis ______ directly by the citrate shuttle, which increases the cytosolic levels of _______ and _______. The citrate shuttle is "filled" by the anaplerotic carboxylation of pyruvate from the parallel oxidation of ______. Answer options: (1) acetyl-CoA (9) glucose (2) ADP (10) malonyl-CoA (3) AMP (11) NAD + (4) ATP (12) NADH (5) CO2 (13) NADP + (6) coenzyme A (14) NADPH (7) FADH2 (15) is inhibited / reduced (8) fatty acids (16) are stimulated / increased
Easy question, 30 min timed assignment, please answer ASAP, thanks. 1. Glycerol from hydrolysis of triacylglycerols...
Easy question, 30 min timed assignment, please answer ASAP,
thanks.
1. Glycerol from hydrolysis of triacylglycerols enters gluconeogenesis at. a. glyceraldehyde-3-phosphate. b. dihydroxyacetone phosphate. c. 1,3-bisphosphoglycerate. d. 3-phosphoglycerate. e. 2-phosphoglycerate. or tissue prefers to use ketone bodies such as acetoacetate as a source of fuel instead of glucose? a. heart muscle c. brain d. liver e. stomach b. adrenal cortex 3. The key enzyme in glycogen degradation is a. glycogen phosphatase. b. glycogen hydrolase. c. glycogen phosphorylase A d. glycogen...
Glucose oxidation rapidly adjusts to the dietary intake of carbohydrate. Which of these statements is true...
Glucose oxidation rapidly adjusts to the dietary intake of carbohydrate. Which of these statements is true regarding excess carbohydrate intake? Choose all that apply. Excess carbohydrates slanul the body to store amino acids Excess carbohydrates are stored as glycogen Excess carbohydrates trager the process of gluconeogenesis. Excess carbohydrates can be converted to fat. Match the term with the correct definition Synthesis of glycogen lyropeless Synthesis of fatty acids & triglycerides ketogenic amino acids Amino acids that can be used to...
Short answer questions, answer on blank paper. These questions cannot be answered without work, you must...
Short answer questions, answer on blank paper. These questions cannot be answered without work, you must show all work for full credit. 1. (8 points) Given the following metabolic pathway of aspartate to pyruvate, all of which occurs in the cytosol thus requiring transport of electrons into the mitochondria, calculate the number of ATP that can produced from the complete cxcidation of aspartate in the muscle aspartate oxaloacetate m NAD NADH NADH NAD alate Pyruvate NAD NADH 2. (7 points)...
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...
Questions on Metabolic Pathways & Energy balance 81 Match the items. #2 What can be said...
Questions on Metabolic Pathways & Energy balance
81 Match the items. #2 What can be said about the glycolysis pathway? a. Initial breakdown of carbohydrate b. Initial breakdown of fat C. Made by all three energy nutrients d. Removal of nitrogen from an amino acid e. Most ATP is produced a. requires oxygen. b. is the breakdown of pyruvate to acetyl COA. C. converts acetyl CoA into pantothenic acid. od results in the formation of pyruvate. 1. Electron Transport Chain...
Please help me figure these out, and if you could explain why you got the answer...
Please help me figure these out, and if you could explain why you got the answer you did that would be great, because I have an exam tomorrow! Thanks in advance. 1. Anaplerotic reactions __________. A. produce oxaloacetate and malate to maintain constant levels of citric acid cycle intermediates B. produce biotin needed by pyruvate carboxylase C. recycle pantothenate used to make CoA D. produce pyruvate and citrate to maintain constant levels of citric acid cycle intermediates E. All of...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
100X The following structure are found in both rokaryotic and cukaryotic cells except (a) mitochondrion (c)...
100X The following structure are found in both rokaryotic and cukaryotic cells except (a) mitochondrion (c) cytosol (b) ribosome (d) plasma membrane What is the maximum total magnification of light microscopy? (a) 5X (c) 100X (b) 40X (d) 1000X 3. The microscopy that scans the specimen with a focused laser beam to obtain a series of two dimensional optical sections, which can be used to reconstruct an image of the specimen in three dimensions (a) SEM (c) TEM (b) Confocal...
Easy question, 30 min timed assignment, please answer ASAP,
thanks.
1. Glycerol from hydrolysis of triacylglycerols enters gluconeogenesis at. a. glyceraldehyde-3-phosphate. b. dihydroxyacetone phosphate. c. 1,3-bisphosphoglycerate. d. 3-phosphoglycerate. e. 2-phosphoglycerate. or tissue prefers to use ketone bodies such as acetoacetate as a source of fuel instead of glucose? a. heart muscle c. brain d. liver e. stomach b. adrenal cortex 3. The key enzyme in glycogen degradation is a. glycogen phosphatase. b. glycogen hydrolase. c. glycogen phosphorylase A d. glycogen...
Glucose oxidation rapidly adjusts to the dietary intake of carbohydrate. Which of these statements is true regarding excess carbohydrate intake? Choose all that apply. Excess carbohydrates slanul the body to store amino acids Excess carbohydrates are stored as glycogen Excess carbohydrates trager the process of gluconeogenesis. Excess carbohydrates can be converted to fat. Match the term with the correct definition Synthesis of glycogen lyropeless Synthesis of fatty acids & triglycerides ketogenic amino acids Amino acids that can be used to...
Short answer questions, answer on blank paper. These questions cannot be answered without work, you must show all work for full credit. 1. (8 points) Given the following metabolic pathway of aspartate to pyruvate, all of which occurs in the cytosol thus requiring transport of electrons into the mitochondria, calculate the number of ATP that can produced from the complete cxcidation of aspartate in the muscle aspartate oxaloacetate m NAD NADH NADH NAD alate Pyruvate NAD NADH 2. (7 points)...
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...
Questions on Metabolic Pathways & Energy balance
81 Match the items. #2 What can be said about the glycolysis pathway? a. Initial breakdown of carbohydrate b. Initial breakdown of fat C. Made by all three energy nutrients d. Removal of nitrogen from an amino acid e. Most ATP is produced a. requires oxygen. b. is the breakdown of pyruvate to acetyl COA. C. converts acetyl CoA into pantothenic acid. od results in the formation of pyruvate. 1. Electron Transport Chain...
100X The following structure are found in both rokaryotic and cukaryotic cells except (a) mitochondrion (c) cytosol (b) ribosome (d) plasma membrane What is the maximum total magnification of light microscopy? (a) 5X (c) 100X (b) 40X (d) 1000X 3. The microscopy that scans the specimen with a focused laser beam to obtain a series of two dimensional optical sections, which can be used to reconstruct an image of the specimen in three dimensions (a) SEM (c) TEM (b) Confocal...
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