Endergonic reactions do which of the following? Select all that apply. A. Are nonspontaneous B. Consume energy C. Are spontaneous D. Release energy
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- Which of the following is true for all exergonic reactions? Group of answer choices A. The reactions are nonspontaneous B. A net input of energy from the surroundings is required for the reactions to proceed C. Some reactants will be converted to products D. The products have more total energy than the reactants E. The reaction proceeds with a net release of free energyUse the energy graph shown here to define and explain the importance of the following four terms. You must refer to the parts of the graph as examples. Don't forget to define AND explain all four terms. - uncatalyzed catalyzed Reactant Product Course of Reaction A. Activation energy B. Catalysis C. Gibbs free energy D. Exergonic reactions For the toolh Energy Released Energy SuppliedWhat terms would best describe the above coupled reaction?A. it is non-spontaneous and endothermic (because the overall Go is positive)B. it is spontaneous and exothermic (because the overall Go is positive)C. it is non-spontaneous and exothermic (because the overall Go is positive)D. it is spontaneous and exothermic (because the overall Go is negative)E. it is non-spontaneous and endothermic (because the overall Go is negative)
- Define the following terms: a. hydride ion b. oxidation reaction c. energy d. FAD e. electron transport pathwayWhich of the followingdescribe superior properties of enzymes (biological catalysts) over traditional chemical catalysts? a. They are mostly and generally operative under mild temperature, pressure, and pH conditions b. They are regulated only by substrate concentration c. They do not effect the reaction equilibrium, but lower the reaction's activation energy d. They are recycled at the end of the reaction Choose all that applyAnswer the following question using the reaction coordinàte diagram shown below. 280 240 200 160- 120- 80 40 Time How would the addition of a catalyst affect the reaction? A. The rate of reaction will increase because potential energy of the reactants is increased. B. Catalysts have no effect on reactions. O C. The rate of reaction will decrease because the activation energy is lowered. D. The rate of reaction will increase because the activation energy is decreased. Chp Co Heat content (H) kilojoules
- In which of the following reactions is the reactant oxidized? a. ATP → AMP b. NAD+ → NADH c. NADH → NAD+ d. acetaldehyde → ethanolAnabolic reactions: A. Require Energy B. Create Energy C. Break large compounds into simpler compounds D. Both A &CWhich 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.
- The reactions that have no net free energy change is . a. reversible O b. equilibrium O c. allosteric O d. endergonic e. kineticWhat 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 equilibriumWhich of the following statements is FALSE? Select one: a. Enzymes lower the amount of energy needed for a reaction. b. Enzymes are chemically unchanged during the actual catalytic process. c. Enzymes speed up the attainment of a reaction equilibrium. d. Enzymes make reactions 103 to 1020 times faster.