The PDH complex is not regulated byL O fatty acids covalent modification O ADP O acetyl-CoA
Why does acetyl CoA, a product of fatty acid catabolism, influence the pyruvate dehydrogenase complex (PDH), a control point in carbohydrate catabolism? When fatty acid breakdown is high, ADP is low and PDH is inhibited by phosphatase activity. When fatty acid breakdown is inhibited, PDH is inhibited by acetyl CoA due to phosphatase activity. When fatty acid breakdown is high, NADH levels drop, causing an increase in E2 activity. When fatty acid breakdown is high, PDH is inhibited by acetyl...
The metabolism of fatty acids is regulated in the short term by allosteric modulators, covalent modification and _________. Group of answer choices: A) Fluctuating nutrient availability B) Energy demands C) Changes in gene expression D) Hormones E) A, B and C are all correct
Which of the following can be converted to acetyl-CoA? glucose only glucose and fatty acids Oglucose, fatty acids, and ketogenic amino acids fatty acids only
Why would it be advantageous to plants to be able to get acetyl-CoA from fatty acids? -Fatty acids are the macromolecule most easily taken up by the roots of the plant -Plants lack the ability to synthesize carbohydrates -Energy derived from photosynthesis primarily comes in the form of fatty acids -Seeds have a limited amount of space and fatty acids are the most energy dense macromolecule
Why would it be advantageous to plants to be able to get acetyl-CoA from fatty acids? Plants lack the ability to synthesize carbohydrates Seeds have a limited amount of space and fatty acids are the most energy dense macromolecule Energy derived from photosynthesis primarily comes in the form of fatty acids Fatty acids are the macromolecule most easily taken up by the roots of the plant
Why would it be advantageous to plants to be able to get acetyl-CoA from fatty acids? Plants lack the ability to synthesize carbohydrates Seeds have a limited amount of space and fatty acids are the most energy dense macromolecule Energy derived from photosynthesis primarily comes in the form of fatty acids Fatty acids are the macromolecule most easily taken up by the roots of the plant It's apparently not B maybe?
How many molecules of acetyl-CoA are produced by catabolism of the following fatty acids, and how many β oxidations are needed? Part A Lauric acid, CH3(CH2)10COOH Express your answers as integers separated by a comma. molecules of acetyl-CoA, β oxidations = Part B Decanoic acid, CH3(CH2)8COOH Express your answers as integers separated by a comma. molecules of acetyl-SCoA, β oxidations =
1. If acetyl-CoA is not metabolized by the citrate cycle, its most likely metabolic fate is a is used during glycolysis. b it is use to synthesize H2S. c is used to synthesize amino acids. d is used to synthesize fatty acids. e is transported across the cell membrane. 2. How is the pyruvate dehydrogenase enzyme regulated? a product inhibition b pH and the protonation state of the active site c proteolysis d covalent modification e pH and enzyme conformation...
Which of the following conditions will activate PDH kinase, which catalyzes the phosphorylation and inactivation of E1 in the PDH complex: a. elevation concentrations of acetyl coa b. elevated concentrations of NAD+ & ADP c. CA2+ d. insulin e. none of the above
Question 1. Calculate the numbers of acetyl-CoA molecules produced when a fatty acid with 14 carbons after undergoing beta-oxidation? Question 2. How many a) cycles of beta-oxidation will a fatty acid with 14 carbons undergo? Explain briefly. b)? How many acetyl-CoA molecules ? explain briefly? Question 3. Consider the synthesis of fatty acids: Answer the flowing: True or False: a) CoA carries intermediate b) Acetyl-CoA donates two carbon atoms c) Malonyl-CoA donates two carbon atoms d) The reverse of fatty...