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 8RQ
Which of the following is the best way to judge the relative activation energies between two given
- Compare the ?G values between the two reactions
- Compare their reaction rates
- Compare their ideal environmental conditions
- Compare the spontaneity between the two reactions.
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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
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.
Which of the following is not an assumption made when evaluating Michaelis Menton kinetics?
the reaction is happening at body temperature
the substrate is in great excess of the catalyst
measurement of initial velocity of the reaction
reaction conditions are occurring under steady state
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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- 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 energyarrow_forwardAmylase is an enzyme found in saliva that breaks down starch. The enzyme is currently functioning at its optimal pH of 7 and optimal temperature of 32oC. Which of the following could result in an increase in the reaction rate? Providing an environment with a pH of 9. Decreasing enzyme concentration. Placing the reactants in an environment at 10oC. Increasing substrate concentration.arrow_forwardif 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 constantarrow_forward
- Choose the best answer for the following question? Enzymes catalyze chemical reactions by which of the following?a. lowering the energy of activation in the reactionb. raising the energy of activation in the reactionc. increasing entropyd. increasing the free energy of the productsarrow_forwardWhat 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 equilibriumarrow_forwardWhich of the following statements are correct about how enzymes accelerate chemical reactions (select all that apply)? A. Enzymes bind substrates to raise their effective concentration B. Enzymes enhance the rate of a chemical reaction C. Enzymes catalyze chemical reactions by destabilizing transition states D. Side chains of protein provide reactive groups that facilitate reaction E. Enzymes shift the equilibrium of a chemical reaction to favor product formationarrow_forward
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- A spontaneous reaction doesn't have an activation energy. True or false? True or Falsearrow_forwardAn exergonic reaction has which of the following properties? A) The △G is negative and the reaction is spontaneous. B) The △G is negative and the reaction is non-spontaneous. C) The △G is positive and the reaction is spontaneous.arrow_forwardWhich of the following steps should be followed when performing kinetics experiments? the michaelis constant must be known the enzyme and substrate should not be mixed until just before the absorbance readings are taken reaction rates must be taken until reaction completion enzyme concentration must remain constantarrow_forward
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