AG for the hydrolysis of ATP is -30.5 kJ/mol. What effect will the tripling of ATP concentration have on the value of AG° for ATP hydrolysis? a. Make the value of AG° more positive. O b. Make the value of AG° less negative. O c. Make the value of AG° more negative. O d. Make the value of AG° less positive. e. There will be no change in the value of AG.
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- the change in kinetic parameters caused by a competitive inhibitor is ? a) a decrease in apparent KM b) an increase in apparent KM c) a decrease in apparent Vmax d) an increase in catalytic efficiency e) an increase in apparent VmaxThe standard free energy (or AG") for the reaction ATP + H₂O → ADP + P₁ is: OA) -30.5 kJ/mol B) +45.6 kJ/mol OC) +30.5 kJ/mol D) -7.3 kJ/mol OE) +7.3 kJ/molThe table below provides kinetic information when ADH is reacted with ethanol alone, NAD+ alone, and ethanol with NAD+ Based on the plot, which experiment tested: A) The reaction of ADH with only ethanol? B) The reaction of ADH with only NAD+? C) The reaction of ADH with both ethanol and NAD+?
- Oxidative phosphorylation is the process by which the free energy obtained from the oxidation of metabolic fuels is used to generate ATP. (a).Which enzyme reaction controls oxidative phosphorylation? (b).Describe the way this enzyme controls oxidative phosphorylationWrite a balanced equation showing the conversion of glucose and oxygen to carbon dioxide and water: (a) Indicate in your equation which molecule becomes reduced? (b) Indicate in your equation which molecule becomes oxidized? (c) What happens to the energy that is released in this redox reaction? (d) Name the oxidizing agent.Why is it 30 to 32 ATP produced for cellular respiration in Physiology? When I calculate it, I get 32.
- Discuss the composition of the transition state for the formation of ATP by ATP Synthase. a) Where is the active site for this enzyme located? b) How are the amino acid side chains from the α and β subunits of ATP Synthase involved? c) Discuss the importance of Mg+2 in the mechanism of this enzyme.(A) how much energy is necessary to heat 7.0 kg of water from room temperature (20 degrees Celsius) to its boiling point? (Assume no energy loss) (b) if electrical energy were used, how much would this cost at 45 cent per kWh?The standard free energy variation of the ATP hydrolysis reaction is ΔGº’ = -30.5 kJ / mol ATP + H2O ⇄ ADP + Pi In red blood cells, when the concentration of Pi is 1.6 mM, the real change in energy free is ΔG = - 50'2 kJ / mol. a) Calculate under these conditions what is the ratio [ATP] / [ADP] in the red blood cells. b) Determine the equilibrium constant K 'of the reaction outlined above. c) If the ADP concentration were 0.2mM, what would be the effective concentration of ATP corresponding to equilibrium.
- Skeletal muscle can store energy in the form of phosphocreatine, which is able to regenerate ATP. In relation to this, answer all of the following: (Show all your work for each part) a) Use your knowledge of bioenergentics to show why this statement is true. b) What is K¢eq for the overall reaction? c) Drawbiochemicalstructuresfortheoverallreaction. d) If the steady-state concentrations of phosphocreatine and creatine in a myocyte (muscle cell) are 1 uM and 129 uM, respectively, what will be the ratio of [ATP]/[ADP], assuming the creatine kinase reaction is at equilibrium?Which of the following statements concerning ATP is true? a. The free energy value for the hydrolysis of ATP is nearly the same for ADP. b. The free energy value for the hydrolysis of ATP is greater than that for ADP. c. ATP hydrolysis is more likely at pH 5 than at pH 7. d. One mole of glycerate-1,3-bisphosphate can phosphorylate one mole of AMP to yield ATP.Please answer both parts A.Phosphate-containing compounds, such as ATP, are considered “high-energy” because they have a -ΔGo more negative than -35kJ/mol. Select one: The above statement is TRUE. The above statement is FALSE. B. Which graph(s) display(s) sequential kinetic mechanism of bisubstrate reactions?