Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Question
Chapter 6, Problem 56SA
Summary Introduction
To review:
The reactions that take placein dilute solution obey the rule of reaction kinetics. Relation of this approach with the investigation of enzymes in living cells.
Introduction:
The purpose of studying enzyme kinetics is to understand the working as well as the
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Students have asked these similar questions
The figure below represents a reaction in the presence and absence of an enzyme
catalyst. What can you conclude about this reaction?
energy
activation
energy
activation
energy
1
uncatalysed reaction
catalysed reaction
A) It is endergonic in the absence of the enzyme.
B) It will proceed more quickly in the presence of the enzyme.
C) Once the reaction has reached equilibrium, there will be more product in the
enzyme-catalyzed reaction.
D) It has a negative AG.
OE) Both B and D are true
Which of the following is TRUE under the following conditions: the enzyme
concentration is 2.5 nM, substrate concentration is 75 nM, the KM = 150 nM, and
the Vmax = 20 nmol/min
a) The rate of the reaction is 20 nmol/min!
b) The rate of the reaction is between 10 nmol/min and 20 nmol/min.
c) The rate of the reaction is 10 nmol/min.
d) The rate of the reaction is below 10 nmol/min.
e) The rate cannot be determined from the above information.
Why does increasing concentration generally increase the rate of a reaction?
Chapter 6 Solutions
Biochemistry: The Molecular Basis of Life
Ch. 6 - Prob. 1QCh. 6 - Prob. 2QCh. 6 - Prob. 3QCh. 6 - Prob. 4QCh. 6 - Prob. 5QCh. 6 - Prob. 6QCh. 6 - Prob. 7QCh. 6 - Prob. 8QCh. 6 - Prob. 9QCh. 6 - Prob. 1RQ
Ch. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - Prob. 9RQCh. 6 - Prob. 10RQCh. 6 - Prob. 11RQCh. 6 - Prob. 12RQCh. 6 - Prob. 13RQCh. 6 - Prob. 14RQCh. 6 - Prob. 15RQCh. 6 - Prob. 16RQCh. 6 - Prob. 17RQCh. 6 - Prob. 18RQCh. 6 - Prob. 19RQCh. 6 - Prob. 20RQCh. 6 - Prob. 21RQCh. 6 - Prob. 22RQCh. 6 - Prob. 23RQCh. 6 - Prob. 24RQCh. 6 - Prob. 25RQCh. 6 - Prob. 26RQCh. 6 - Prob. 27RQCh. 6 - Prob. 28RQCh. 6 - Prob. 29RQCh. 6 - Prob. 30RQCh. 6 - Prob. 31RQCh. 6 - Prob. 32RQCh. 6 - Prob. 33RQCh. 6 - Prob. 34RQCh. 6 - Prob. 35RQCh. 6 - Prob. 36RQCh. 6 - Prob. 37RQCh. 6 - Prob. 38RQCh. 6 - Prob. 39RQCh. 6 - Prob. 40RQCh. 6 - Prob. 41RQCh. 6 - Prob. 42RQCh. 6 - Prob. 43FBCh. 6 - Prob. 44FBCh. 6 - Prob. 45FBCh. 6 - Prob. 46FBCh. 6 - Prob. 47FBCh. 6 - Prob. 48FBCh. 6 - Prob. 49FBCh. 6 - Prob. 50FBCh. 6 - Prob. 51FBCh. 6 - Prob. 52FBCh. 6 - Prob. 53SACh. 6 - Prob. 54SACh. 6 - Prob. 55SACh. 6 - Prob. 56SACh. 6 - Prob. 57SACh. 6 - Prob. 58TQCh. 6 - Prob. 59TQCh. 6 - Prob. 60TQCh. 6 - Prob. 61TQCh. 6 - Prob. 62TQCh. 6 - Prob. 63TQCh. 6 - Prob. 64TQCh. 6 - Prob. 65TQCh. 6 - Prob. 66TQCh. 6 - Prob. 67TQCh. 6 - Prob. 68TQCh. 6 - Prob. 69TQCh. 6 - Prob. 70TQCh. 6 - Prob. 71TQCh. 6 - Prob. 72TQCh. 6 - Prob. 73TQCh. 6 - Prob. 74TQCh. 6 - Prob. 75TQCh. 6 - Prob. 76TQCh. 6 - Prob. 77TQCh. 6 - Prob. 78TQCh. 6 - Prob. 79TQCh. 6 - Prob. 80TQCh. 6 - Prob. 81TQ
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Similar questions
- Enzymes are biological catalysts that fulfill the following general reaction mechanism: E+S [ES] [EP] E + P Where E is enzyme, S is substrate, and P is product. Briefly describe how an enzyme is able to speed of the rate of a reaction:arrow_forwardHow does the rate of the forward reaction compare to the rate of the reverse reaction for an endergonic reaction? For an exergonic reaction? Explain.arrow_forwardList three effects of macromolecular crowding on the properties of enzymes and the reactions they catalyze.arrow_forward
- Consider the reaction: H O C—C—C—SCOA H₂C(CH₂)C= CO H H₂C-(CH₂) What kind of reaction is being performed here? b. What enzyme performs this reaction? OH H O O=C -C—C—C—SCOA H H c. What cofactors, if any, are required for this reaction?arrow_forwardWhich 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).arrow_forwardDefine the following terms:a. reaction orderb. turnover numberc. double-displacement reactiond. inhibitore. reaction mechanismarrow_forward
- A laboratory technician has been tasked to generate a solution for an enzymatic reaction. The solution needed to contain glutamic acid at a final concentration of 12.25 mM. They found a concentrated stock solution in their chemical cabinet and used a measuring cylinder to dilute the stock solution to the desired final volume of the solution.arrow_forwardWhich of the following aspects of catalysis by enzymes can NOT be explained by the Fischer Lock and Key Hypothesis? Enzymes will lower the activation energy barrier for reaction. Enzymes will specifically recognize their substrates. Appropriate substrates will bind to the enzyme to form a Michaelis complex. Enzymes have an "active site" where appropriate substrates will be bound. Two of the above cannot be explained by the Fischer "Lock and Key" Hypothesis.arrow_forwardWhy do we say "an enzyme is reusable"?arrow_forward
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