Under actual cellular conditions, how many strongly exergonic reactions take place in glycolysis?
Under actual cellular conditions, how many strongly exergonic reactions take place in glycolysis?
Homework Answers
Cellular respiration is a good example of exergonic reactions. In such reactions there is a gradual loss of energy as the reaction proceeds. Such reactions are spontaneous in nature indicating that it's free energy change over the period of time is negative. In the process of glycolysis, there are 3 steps where exergonic reactions occur. These 3 steps are carried out by the 3 respective enzymes-phosphofructokinase, pyruvate kinase and hexokinase. The first step where glucose is converted to glucose 6 phosphate is carried out by hexokinase marking it as the first exergonic reaction. The second exergonic reaction is carried out by phosphofructokinase where fructose 6 phosphate is converted to fructose 1,6 bisphosphate. Lastly, the third exergonic reaction is carried out by pyruvate kinase in converting phosphoenolpyruvate to the ultimate end product of glycolysis which is pyruvate.
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Under actual cellular conditions, how many strongly exergonic
reactions take place in glycolysis?
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply....
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply. 0 Select all that apply Hexokinase Phosphoglucoisomerase с Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
GAP is the only 3 atom unit useful to produce ATP. However, under cellular conditions, TPI...
GAP is the only 3 atom unit useful to produce ATP. However, under cellular conditions, TPI favors DHAP formation over GAP formation. How can glycolysis work? A. Glycolysis reactions that occur in stage 3, lower the concentration of GAP and drive glycolysis B. Aldolase reaction favors GAP formation C. ATP hydrolysis in stage 1 are irreversible and favor the formation of GAP D. TPI changes the equilibrium to favor GAP formation E. All of the above
2. If the mass action ratio, Q, for a reaction under cellular conditions is larger than...
2. If the mass action ratio, Q, for a reaction under cellular conditions is larger than the equilibrium constant Keq, then: a) The reaction will be at equilibrium b) The reaction will be endergonic and go backwards c) The reaction will be exergonic and go backwards d) The reaction will be endergonic and go forward e) The reaction will be exergonic and go forward 3. Because of the regulatory interrelationships between metabolites, when glucagon is high, fructose-2.6. bisphosphatase (FB Pase-2)...
Glycolysis takes place in the _____________ and the citric acid cycle and electron transport chain take...
Glycolysis takes place in the _____________ and the citric acid cycle and electron transport chain take place in the ___________. A. cytoplasm; endoplasmic reticulum B. mitochondria, chloroplast C. cytoplasm; mitochondria D. mitochondria; cytoplasm If an atom has an outer shell that is full it is A. highly reactive B. highly likely to combine with other atoms C. highly unlikely to combine with other atoms Reactions that tend to go on their own, releasing energy, are called: A. endergonic B. exergonic...
Cellular Respiration Worksheet 1.Where does each reaction take place? -Glycolysis -Fermentation -Acetyl CoA formation -Krebs Cycle...
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Many proteins, especially transcription factors, need to be delivered to the nucleus under certain cellular conditions...
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How many ATP are formed via cellular aerobic respiration? ATP from glycolysis and the citric cycle?...
How many ATP are formed via cellular aerobic respiration? ATP from glycolysis and the citric cycle? ATP from the electron transport chain?
1. Draw the reactions in which glycolysis is maintained under anaerobic conditions. 2. Draw the reaction...
1. Draw the reactions in which glycolysis is maintained under anaerobic conditions. 2. Draw the reaction in the citric acid cycle by which the energy is conserved in the formation of a phosphoanhydride bond by substrate-level phosphorylation. 3. Draw the reaction catalyzed by acyl-CoA dehydrogenase using a generic fatty-acyl-CoA.Type or paste question here
Cellular Respiration Worksheet: 1. Where in the cell does each reaction take place? Fermentation - 2....
Cellular Respiration Worksheet: 1. Where in the cell does each reaction take place? Fermentation - 2. Name the Reactant and Products for each reaction - Glycolysis Reactants:___________________________________________ Products:____________________________________________
8,9,10 please 6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules...
8,9,10 please
6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules are used up during the first 3 reactions? b. How many ATP molecules are produced by the last 4 reactions? c. What is the net ATP balance for glycolysis? 7. Is 02 a reactant in any of the reactions of glycolysis? 8. During glycolysis, there is an oxidation reaction that is necessary in order for any ATP to be produced. Name the oxidizing agent...
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply. 0 Select all that apply Hexokinase Phosphoglucoisomerase с Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
GAP is the only 3 atom unit useful to produce ATP. However, under cellular conditions, TPI favors DHAP formation over GAP formation. How can glycolysis work? A. Glycolysis reactions that occur in stage 3, lower the concentration of GAP and drive glycolysis B. Aldolase reaction favors GAP formation C. ATP hydrolysis in stage 1 are irreversible and favor the formation of GAP D. TPI changes the equilibrium to favor GAP formation E. All of the above
2. If the mass action ratio, Q, for a reaction under cellular conditions is larger than the equilibrium constant Keq, then: a) The reaction will be at equilibrium b) The reaction will be endergonic and go backwards c) The reaction will be exergonic and go backwards d) The reaction will be endergonic and go forward e) The reaction will be exergonic and go forward 3. Because of the regulatory interrelationships between metabolites, when glucagon is high, fructose-2.6. bisphosphatase (FB Pase-2)...
8,9,10 please
6. Consider the glycolysis of a single glucose molecule. a. How many ATP molecules are used up during the first 3 reactions? b. How many ATP molecules are produced by the last 4 reactions? c. What is the net ATP balance for glycolysis? 7. Is 02 a reactant in any of the reactions of glycolysis? 8. During glycolysis, there is an oxidation reaction that is necessary in order for any ATP to be produced. Name the oxidizing agent...
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