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Reactions that release free energy are
a. exergonic.
b. spontaneous.
c. endergonic.
d. endothermic.
e. both a and b.
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Solved in 2 steps
- Exergonic reactionsa. are spontaneous.b. have a negative ΔG value.c. release energy.d. All of these are correct.Endergonic reactions do which of the following? Select all that apply. A. Are nonspontaneous B. Consume energy C. Are spontaneous D. Release energyWhich statements are true and which are false? Modify each false statement so that it reads correctly. a. In a closed system, neither energy nor matter is exchanged with the surroundings. b. State functions are independent of the pathway. c. A process is isothermic if ΔH = 0. d. The sign and magnitude of ΔG give important information about the direction and rate of a reaction. e. At equilibrium, ΔG = ΔG°. f. For two reactions to be coupled, they must have a common intermediate.
- Which of the following statements is/are true about enzyme-catalyzed reactions? A. The reaction is faster than the same reaction. B. The free energy change of the reaction is opposite from the reaction in the absence of the enzymes. C. The reaction always goes in the direction toward chemical equilibrium. D. A and B only E. A, B and CThe hydrolysis of ATP requires a. energy. b. water. C. a high temperature. d. energy and water. e. All of these. b. a d.Which statements concerning free energy change are true?a. Free energy change is a measure of the rate of a reaction.b. Free energy change is a measure of the maximum amountof work available from a reaction.c. Free energy change is a constant for a reaction under anyconditions.d. Free energy change is related to the equilibrium constantfor a specific reaction.e. Free energy change is equal to zero at equilibrium.
- When ATP is hydrolyzed to produce ADP and phosphate the chemical reaction is Select one: a. Endergonic b. Neither releases nor requires input of energy c. ExergonicWhich of these statements concerning enzymes is correct?a. Enzymes increase the rate of reactions but are permanentlychanged as a result.b. Enzymes are proteins that function as catalysts.c. Enzymes increase the activation energy requirement for a reactionto occur.d. Enzymes usually can only double the rate of a chemicalreaction.e. Enzymes increase the kinetic energy of the reactants.What statements concerning free energy change are true or false? a. Free energy change is a measure of the rate of a reaction. b. Free energy change is a measure of the maximum amount of work available from a reaction. c. Free energy change is a constant for a reaction under any conditions. d. Free energy is related to the equilibrium constant for a specific reaction. e. Free energy change is equal to zero at equilibrium
- Which of the following is true of thermodynamically spontaneous reactions? O A. They are all energy-yielding They are all energy-consuming They all result in an increase in the temperature of the system They all result in a decrease in the temperature of the system В.Energy is defined as the ability to cause change. Which is the best reason why? Because energy influences everything. а. b. Because some form of energy is required to produce a change. С. Because energy is everywhere. d. Because energy can change forms.the energy released by ___ reactions is used to run ________ reactions A. ENDERGONIC; ENDERGONIC B. EXERGONIC; ENDERGONIC C. EXERGONIC; EXERGONIC D. ENDERGONIC; EXERGONIC