Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 6, Problem 19CTQ
Describe the position of the transition state on a vertical energy scale, from low to high, relative to the position of the reactants and products, for both endergonic and exergonic reactions.
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Which of the following statements are true for BOTH the "transition state" and an
"intermediate" of reaction? (This is a multi-select question, select all that apply.).
Both are only observed in enzyme-catalyzed reactions.
Both can be converted to product(s) or might decompose back to the reactant(s).
Neither are part of the "net equation" for the reaction.
Both contain covalent bonds are in the process of breaking and/or forming.
Both are part of every chemical reaction. (i.e. the mechanisms of all chemical
reactions, whether enzyme catalyzed or not, will have involve both a transition
state and an intermediate).
discuss the following statement: “Whether the ΔG for a reaction is larger, smaller, or the same as ΔG° depends on the concentration of the compounds that participate in the reaction.”
What do the following indicators tell you about whether a reaction can proceed as written? (a) The standard free-energy change is positive. (b) The free-energy change is positive. (c) The reaction is exergonic
Chapter 6 Solutions
Biology 2e
Ch. 6 - Figure 6.8 Look at each of the processes shown,...Ch. 6 - Figure 6.10 If no activation energy were required...Ch. 6 - Figure 6.14 The hydrolysis of one ATP molecule...Ch. 6 - Energy is stored long-term in the bonds of and...Ch. 6 - DNA replication involves unwinding two strands of...Ch. 6 - Consider a pendulum swinging. Which type(s) of...Ch. 6 - Which of the following comparisons or contrasts...Ch. 6 - Which of the following is the best way to judge...Ch. 6 - Which of the following is not an example of an...Ch. 6 - In each of the three systems, determine the state...
Ch. 6 - The energy released by the hydrolysis of ATP is...Ch. 6 - Which of the following molecules is likely to have...Ch. 6 - Which of the following is not true about enzymes...Ch. 6 - An allosteric inhibitor does which of the...Ch. 6 - Which of the following analogies best describes...Ch. 6 - Does physical exercise involve anabolic and/or...Ch. 6 - Name two different cellular functions that require...Ch. 6 - Explain in your own words the difference between a...Ch. 6 - Describe the position of the transition state on a...Ch. 6 - Imagine an elaborate ant farm with tunnels and...Ch. 6 - Energy transfers take place constantly in everyday...Ch. 6 - Do you think that the Ea for ATP hydrolysis is...Ch. 6 - With regard to enzymes, why are vitamins necessary...Ch. 6 - Explain in your own words how enzyme feedback...
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Similar questions
- Draw the product AND propose a reasonable, detailed stepwise mechanism, using curved arrow notation to show the flow of electrons, for the following reaction.arrow_forwardIn a transition state diagram, which of the following are features of the transition state (TS)? There may be more than one correct answer, select all that apply. The change in energy in ground state to the transition state represents the Gibbs Free Energy If the reaction is reversible, the TS will only progress forward to form products The TS occupies a trough The TS is associated with the highest energy The TS occupies the highest peakarrow_forwardFor this reaction: 6CO2 + 6H2O → C6H12O6 + 6O2, the products have 2760 kJ/mole more free energy than the reactants. So, which of the following statements best describes the reaction? a The reaction is endergonic because it converts molecules with less free energy to those with more free energy. b The reaction is exergonic because it converts molecules with less free energy to those with more free energy. c The reaction is exergonic because it converts molecules with more free energy to those with less free energy d The reaction is endergonic because it converts molecules with more free energy to those with less free energy.arrow_forward
- For a particular reaction, AH° = −16.1 kJ/mol and AS° = −21.8 J/(mol·K). Assuming these values change very little with temperature, at what temperature does the reaction change from nonspontaneous to spontaneous in the forward direction? OT= Is the reaction in the forward direction spontaneous at temperatures greater than or less than the calculated temperature? less than greater than Karrow_forwardConsider the reaction below to answer the following question(s): + HBr A B Br с + D Br Enter the appropriate letter in the blank for each the following statements. The kinetically controlled product in this reaction is D B Aarrow_forwardThis is a plot under standard conditions of free energy corresponding to a chemical reaction of A+B to C+D. What will happen if only C+D are present under standard temperature and pressure? Please explain why.arrow_forward
- On the free energy diagram shown, label the intermediate (s) and transition state(s). Is the reaction thermodynamically favorable? Reaction.arrow_forwardPredict the major product of each of the following reactions or series of reactions. In cases involving an ortho/para-directing substituent where two products would be obtained, draw the product resulting from para-substitution only..arrow_forwardLabel the following statements true or false: (c) A nonspontaneous reaction will proceed spontaneously in the reverse direction. (d) A spontaneous process can occur with a large decrease in entropy.arrow_forward
- A particular reaction has a ΔG‡ of 37.0 kJ mol-1. In the presence of an enzyme, the same reaction has a ΔG‡ of 5.70 kJ mol-1. Calculate the value of ΔΔG‡ in kJ mol-1.arrow_forwardOf the three thermodynamic quantities, enthalpy, free energy, and entropy, which provides the most useful indicator of spontaneity in a reaction? Explain.arrow_forwardIs there a difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?arrow_forward
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