Which 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 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.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter7: Energy And Metabolism

Section: Chapter Questions

Problem 11TYU: PREDICT In the following reaction series, which enzyme(s) is/are most likely to have an allosteric...

See similar textbooks

Similar questions

Which of the following is NOT true? a. For many enzymes, Vmax is essentially equal to k3. b. Km is the reaction rate at 1/2 Vmax. c. At steady state the formation of ES is equal to the breakdown of ES. d. A Lineweaver-Burke plot generates a straight line. e. An Eadie-Hofstee plot generates a straight line.
In a highly high-temperature environment, you placed an enzyme and some substrates. You've seen that there hasn't been any reaction. Applying what you have learned on enzyme activity, how would you explain what occurred? A. The enzyme was not placed at a pH level that would allow it to react at its maximum rate. B. There are not enough enzymes for the reaction to occur. C. The enzyme may have denatured or broken down due to the high temperature of the environment, resulting in no reaction. D. There are not enough substrates for reaction to occur. Substrate concentration affects enzyme activity. Determine what would occur when there are too many substrates and fewer enzymes? A. No enzyme activity would occur. B. The reaction rate would continuously increase. C. The reaction would speed up tremendously. D. Maximal rate of reaction would occur. Enzyme activity mainly involves the active site and the substrate. How would you compare the active site from the substrate? A. The substrate…
You have a reaction that takes 8 hours to reach completion at 20 degrees celcius. What is the likely result of changing the temperature to 30 degrees celcius? a. the reaction should take less times b. reaction time would be unaffected c. the reaction should take more time Which would be the correct answer to this question?
Which is most likely to be tightly bound by an enzyme? a)Analog of the starting material (SM), because the SM is tightly bound to start the reaction b)Analog of the transition state (TS), because binding TS tightly catalyzes the reaction c)Analog of the product (P), because binding the P tightly makes the reaction more downhill d)All of the above are approximately equally true
PREDICT In the following reaction series, which enzyme(s) is/are most likely to have an allosteric site to which the end product E binds? (a) enzyme 1 (b) enzyme 2 (c) enzyme 3 (d) enzyme 4 (e) enzymes 3 and 4
How does the average reaction rate differ from an instantaneous reaction rate? © A. The average reaction rate is how quickly the reaction proceeds over time. An instantaneous reaction rate is how quickly the reaction proceeds at a specific time. B. The average reaction rate is how quickly the reaction proceeds at a specific time. An instantaneous reaction rate is how quickly the reaction proceeds over time. C. The average reaction rate is how quickly the reaction proceeds over time considering the reactants. An instantaneous reaction rate is how quickly the reaction proceeds at a specific time considering the products. D. The average reaction rate is how quickly the reaction proceeds over time. An instantaneous reaction rate is how quickly the reaction proceeds compared to another reaction.
Choose in the options what do enzymes do for the activation of energy of the reaction -Ea, given the theory of collision? a. enzymes will bind the reactants b. enzyme will raise temperature to incease the level of energy level. c. enzyme will provide an alternative reaction pathway
if the reaction given below occurs and pure A and B were mixed, which of the following would take place as equilibrium was established A + B ⇌ C a. the concentration of C would increase for a time, then remain constant b. the concentration of A would increase for a time, then decrease c. the concentration of B would increase for a time, then remain constant
Choose the best description of an enzyme: (a) It allows a chemical reaction to proceed extremely fast. (b) It increases the rate at which a chemical reaction approaches equilibrium relative to its uncatalyzed rate. (c) It makes a reaction thermodynamically favorable.
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.
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 energy
Which statement is FALSE? a. For S P, a catalyst shifts the reaction equilibrium to the right. b. After a reaction, the enzyme involved becomes available to catalyze the reaction again. c. A reaction may not occur at a detectable rate even though it has a favorable equilibrium. d. Substrate binds to an enzyme's active site. e. Lowering the temperature of a reaction will lower the reaction rate.