Homework Answers
Low blood glucose causes the release of glucagon hormone, produced by alpha cells of the pancreas.
Glucagon activates phosphorylation of pyruvate dehydrogenase, which inhibits the formation of acetyl-CoA, the substrate which enters the TCA cycle.
Glucagon activates triacylglycerol breakdown, yielding increased levels of fatty acids, which, as acyl-CoAs, could prevent polymerization and activation of acetyl-CoA carboxylase.
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Part A Name all you can think of. Match the words in the left column to...
Identify and briefly discuss each mechanism ensuring against simultaneous fatty acid synthesis and oxidation in the same cell. Match the words in the left column to the appropriate blanks in the sente...
Identify and briefly discuss each mechanism ensuring against simultaneous fatty acid synthesis and oxidation in the same cell. Match the words in the left column to the appropriate blanks in the sentences on the right. hydrolase acetyl-CoAs synthesis activates citrate pyruvate inhibits synthetase oxidation malonyl-CoA fatty acyl-CoAs carboxylase glucagon insulin A key intermediate in fatty acid synthesis,____, ______ carnitine acyltransferase I, thereby blocking the entry of fatty acyl units into the mitochondrion for oxidation. The substrates for fatty acid oxidation,...
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...
Please help me with these questions. I got part of it right not sure about the...
Please help me with these
questions. I got part of it right not sure about the rest
Incorrect Question 2 0/1 pts The mechanism by which insulin decreases oxidation of fatty acids is: O Inhibition of malonyl CoA synthesis O Activation of acetyl CoA carboxylase O Dephosphorylation of carnitine acyl transferase O Dephosphorylation of ACCOA Partial Question 3 1/3 pts Select all the ways in which beta oxidation of fatty acids is regulated Phosphorylation/dephosphorylation of enyzmes Allosterically by ADP Allosterically...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came...
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came up with are in bold) Please help 51- Glycogenesis involves the following steps a) isomerisation b) activation c) elongation or coupling d) branching e) all of the above 52 During the breakdown of glycogen, free glucose is formed from A. the reducing end. B. the non-reducing end. C. glucose residues in an a 1-->4 linkage to the chain. D. glucose residues in an...
e Part ite the Best Matching better right column in front of each m Glycolate pathway...
e Part ite the Best Matching better right column in front of each m Glycolate pathway 1 6. Catalyzes carbon fixation in C#plants Bundle sheath cells n 37. Oxaloacetate as first product of carbon assimilation Involves mitochondria, peroxisomes and chloroplasts Mesophyll cells 19. Catalyzes a bypass reaction of gluconeogenesis Bets oxidation 40. Licht conversion in a photosystem W PEP carboxylase 41. Photosynthetic cells in plants Anabolism 42. Sites of Calvin cycle in plants Photophosphorylation 6. Phosphofructokinase-1 43. Phosphorylation of fructose-6-phosphate...
Can someone please check my answers and aid in #12? 1. The amide nitrogen of glutamine:...
Can someone please check my answers and aid in #12? 1. The amide nitrogen of glutamine: A. represents a nontoxic transport form of ammonia. B. is a major source of ammonia for urinary excretion. C. is used in the synthesis of asparagine, purines, and pynimidines. D. can be recovered as ammonia by the action of glutaminase. E. all of the above are correct. 2- Which of the following statements about glutamate is NOT true: a It can be synthesized in...
I'd like to ask the answers for all of the uestions Question 1. A reaction in...
I'd
like to ask the answers for all of the uestions
Question 1. A reaction in an anabolic pathway in a cell has a AG of +2.5 kcal/mol. Which of the following is true regarding this reaction? A. It will occur spontaneously. B. The product of the reaction has a lower free energy than the reactants. C. It can occur if it is coupled to ATP hydrolysis. D. It is an exergonic reaction. E. It is breaking a polymer into...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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...
Please help me with these
questions. I got part of it right not sure about the rest
Incorrect Question 2 0/1 pts The mechanism by which insulin decreases oxidation of fatty acids is: O Inhibition of malonyl CoA synthesis O Activation of acetyl CoA carboxylase O Dephosphorylation of carnitine acyl transferase O Dephosphorylation of ACCOA Partial Question 3 1/3 pts Select all the ways in which beta oxidation of fatty acids is regulated Phosphorylation/dephosphorylation of enyzmes Allosterically by ADP Allosterically...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
e Part ite the Best Matching better right column in front of each m Glycolate pathway 1 6. Catalyzes carbon fixation in C#plants Bundle sheath cells n 37. Oxaloacetate as first product of carbon assimilation Involves mitochondria, peroxisomes and chloroplasts Mesophyll cells 19. Catalyzes a bypass reaction of gluconeogenesis Bets oxidation 40. Licht conversion in a photosystem W PEP carboxylase 41. Photosynthetic cells in plants Anabolism 42. Sites of Calvin cycle in plants Photophosphorylation 6. Phosphofructokinase-1 43. Phosphorylation of fructose-6-phosphate...
I'd
like to ask the answers for all of the uestions
Question 1. A reaction in an anabolic pathway in a cell has a AG of +2.5 kcal/mol. Which of the following is true regarding this reaction? A. It will occur spontaneously. B. The product of the reaction has a lower free energy than the reactants. C. It can occur if it is coupled to ATP hydrolysis. D. It is an exergonic reaction. E. It is breaking a polymer into...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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