Homework Answers
13. All the choices are correct
Acetyl CoA carboxylase is inhibited by the process of
phosphorylation and can be activated back by the binding of
cirtate. The inhibition of phosphatase 2A is the reason for the
phosphorylation. The dephosphorylated state is active for the
binding of substrate.
14. Malonyl CoA
in the process of fatty acid synthesis, the carboxylation of acetyl
CoA to Malonyl CoA is the committed step and it is an irreversable
reaction.
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Need help with both questions, thank you!
Question 13 The committed step of fatty acid synthesis...
Mention if the following statements are false or true and justify your answer a. Biotin is...
Mention if the following statements are false or true and justify your answer a. Biotin is required for the activity of fatty acid synthase b. The reaction of condensation in the synthesis of fatty acids is enhanced by the decarboxylation of malonyl-CoA c. The synthesis of fatty acids does not depend on ATP d. Palmitate is the final product of fatty acid synthase e. All the activities of the enzyme required for the synthesis of fatty acids in mammals are...
The synthesis of ____________ is the first committed step of fatty acid synthesis and the enzyme...
The synthesis of ____________ is the first committed step of fatty acid synthesis and the enzyme that catalyzes this reaction,_____________ is the major site of regulation of fatty acid synthesis.
9. a. Describe the various ways that Acetyl-CoA Carboxylase, the first committed step of fatty acid...
9. a. Describe the various ways that Acetyl-CoA Carboxylase, the first committed step of fatty acid biosynthesis, is regulated. b. Predict whether this enzyme is likely to be active in the fed state or the fasted state, and provide a rationale for how this activation occurs given your answer to part a.
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...
2) Use this intermediate in fatty acid synthesis ACP The synthesis of this intermediate required one...
2) Use this intermediate in fatty acid synthesis ACP The synthesis of this intermediate required one molecule of malonyl CoA two molecules of malony CoA three molecules of malonyl COA four molecules of malony CoA five molecules of malonyl COA Not listed 7) The molecules shown below are intermediates found in one round of fatty acid synthesis after the condensation step. so ACP ACP Which round of fatty acid synthesis is occurring in the reactions shown? The intermediate above is...
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,...
In the first step of fatty acid synthesis, _a___ is carboxylated. The carboxyl group is then...
In the first step of fatty acid synthesis, _a___ is carboxylated. The carboxyl group is then transferred to _b_, which becomes _C_ Oa) acetyl coA, b) biotin, c) malonyl coA a) biotin, b) acetyl coA, c) malonyl coA a) malonyl coA, b) biotin, c) acetyl coA
Complete the sentences to correctly describe steps in fatty acid synthesis. Put the terms to the...
Complete the sentences to correctly describe steps in fatty acid synthesis. Put the terms to the appropriate blanks. Some terms will not be used, and some will be used more than once. Fatty acid synthesis begins with a preparatory step in which ____________ is transferred from ___________ to the ___________. However, it cannot pass through the membrane, so it is transported as ___________, which is cleaved to ____________ and ____________. In the cytosol, acetyl CoA is converted to ____________, a...
1. Which of the following is true? a. The main rate-limiting step for fatty acid breakdown...
1. Which of the following is true? a. The main rate-limiting step for fatty acid breakdown is the transfer of the fatty acyl group to carnitine, with release of CoA. b. Elongase activity is an enzyme functionality of fatty acid synthase that adds 2-carbon acetyl groups to increase the length of palmitate. c. Oligomycin directly inhibits Complex I in the electron transport chain d. Squalene synthase catalyzes the rate-limiting step of fatty acid synthesis.
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...
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...
2) Use this intermediate in fatty acid synthesis ACP The synthesis of this intermediate required one molecule of malonyl CoA two molecules of malony CoA three molecules of malonyl COA four molecules of malony CoA five molecules of malonyl COA Not listed 7) The molecules shown below are intermediates found in one round of fatty acid synthesis after the condensation step. so ACP ACP Which round of fatty acid synthesis is occurring in the reactions shown? The intermediate above is...
In the first step of fatty acid synthesis, _a___ is carboxylated. The carboxyl group is then transferred to _b_, which becomes _C_ Oa) acetyl coA, b) biotin, c) malonyl coA a) biotin, b) acetyl coA, c) malonyl coA a) malonyl coA, b) biotin, c) acetyl coA
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...
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