In metabolism, which will come first:
Dephosphorylation of phosphoenolpyruvate (PEP) or dephosphorylation of 1,3 bisphosphoglycerate?
Please explain answer.
Dephosphorylation of 1,3- bisphosphoglycerate Comes first and results in the production of 3- phosphoglycerate and ATP, reaction is catalyzed by phosphoglycerate kinase. Now this 3-PGA will be converted to 2-PGA which in turn will be converted to PEP, then dephosphorylation of PEP will result in the production of pyruvate and ATP.
In metabolism, which will come first: Dephosphorylation of phosphoenolpyruvate (PEP) or dephosphorylation of 1,3 bisphosphoglycerate? Please...
Phosphoenolpyruvate (PEP) has an extremely high energy phosphoryl bond, meaning that its dephosphorylation produces a substantially greater amount of energy than does ATP. Why is ATP the “energy currency” of the cell but not PEP?
During the final steps of glycolysis, 1,3-bisphosphoglycerate is converted to 3-phosphoglycerate and finally to phosphoenolpyruvate. What advantage would this strategy have for the cell?
please calculate and show work 10. Metabolism. Which of the following reactions is favorable under standard-state conditions (1 M reactants and products; pH = 7)? Calculate the value of AGⓇ for each phosphate transfer reaction. A) ATP + pyruvate ---> phosphoenolpyruvate + ADP B) 3-phosphoglycerate + ATP ---> 1,3-bisphosphoglycerate + ADP C) 1,3-bisphosphoglycerate + creatine ---> creatine phosphate + 3-phosphoglycerate D) glucose 6-phosphate --> glucose 1-phosphate not favorable noer standard
Which of the following molecules has the highest phosphoryl-transfer potential? Group of answer choices Glucose-6-phosphate 1,3-bisphosphoglycerate phosphoenolpyruvate creatine phosphate ATP
Concentrations of some glycolysis intermediates in the red blood cell (mM): Glucose Glucose-6-P Fructose-6-P Fructose-1,6-BP 1,3-bisphosphoglycerate 0.001 3-phosphoglycerate 5.0 0.083 0.014 0.031 2- phosphoglycerate Phosphoenolpyruvate Pyruvate ATP ADP Pi 0.030 0.023 0.051 1.85 0.14 1.0 0.12 3. Isotopic labeling (incorporating a rare isotope, eg. the radioactive 1C, into a molecule at a defined position) is an important technique for studying metabolism as it enables us to follow individual atoms through a metabolic pathway 2 a. If 4CO2 were bubbled through...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate (Pi) (a) Is the reaction favorable under standard biochemical conditions? Explain your answer. (b) What is the equilibrium constant (K) of this reaction at 25°C? In cells the direct hydrolysis of PEP rarely occurs. Rather, the hydrolysis of PEP and the reverse hydrolysis of ATP are coupled (c) w rite out the coupled reaction and determine its ΔG at 25°C The hydrolysis of ATP...
1. 2. 3. 4. Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
10.Which statement regarding the transcriptional regulation of PEP carboxykinase is false A. The promoter region of the PEP carboxykinase gene has binding sites for more than a dozen transcription factors B. Transcription and degradation are the primary means of regulating PEP carboxykinase gene C . A sterol regulatory binding element protein decrease expression of the PEP carboxykinase gene D. Insulin increase expression of the PEP carboxykinase gene 11. Glycogenesis - A. Occurs only in the liver and muscle B. Begins...
1) Which of the following glycolysis intermediates can be generated from glycerol? dihydroxyacetone phosphate 1,3-bisphosphoglycerate glyceraldehyde-3-phosphate 3-phosphoglycerate 2) Which of the following is the oxidizing agent in the reaction that converts succinate to fumarate? FAD, NADH, NAD+, succinate, Coenzyme A, or FADH2 3) Five NADH molecules in the mitochondria can be made into _____ number of ATP.
Substrate Level phosphorylation occurs during glycolysis... step 6, during the formation of 1,3 bisphosphoglycerate from GAP step 1, during formation of glucose-6-phosphate from glucose Step 3, during formation of Fructose-1,6-Bisphosphate from Fructose-6-Phosphate Step 9 - Formation of Phosphoenolpyruvate from 2-phosphoglycerate QUESTION 7 The amino acid responsible for introducing kinks in DNA helical structure by intercalation is Phenylalanine Ethidium Bromide Tryptophan O Proline QUESTION 8 Most proteins interact with DNA in the form of Head to tail heterodimers Head to tail...