Match the following: Active site adapts to shape of substrate Prevents substrate from entering active site by changing the shape of the enzyme and the 1. Lock-and-Key active site. 2. Induced-Fit Occupies the active site in place of the substrate. 3. Reversible competitive inhibitor Substrate and enzyme fit together without conformational changes. 4. Non-competitive inhibitor 5. Feeback control Product of reaction sequence can regulate further ooduction b

Match the following: Active site adapts to shape of substrate Prevents substrate from entering active site by changing the shape of the enzyme and the 1. Lock-and-Key active site. 2. Induced-Fit Occupies the active site in place of the substrate. 3. Reversible competitive inhibitor Substrate and enzyme fit together without conformational changes. 4. Non-competitive inhibitor 5. Feeback control Product of reaction sequence can regulate further ooduction b

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The substrate dissociation constant, Ks, is k-1/k1. What do large values of this constant mean? That the formation of product will be fast Strong binding between enzyme and substrate that the reaction is unimolecular Weak binding between enzyme and substrate
O Macmillan Learning Determine how reaction rate (velocity) varies with substrate concentration. Rate increases Additional substrate is added when substrate concentration is low. Rate decreases Substrate is added when enzyme is saturated with substrate. Answer Bank Additional substrate is added when substrate concentration is high but is not yet saturating. Rate is unchanged
Find [E] of total enzyme and change in concentration[E] with time of this reaction. E+S <-> (K1,K-1) ES <-> (K2, K-2)EP <-> E+P
. H2 + CH2 = CH2 --> CH3CH3Which of the following could be a substrate for an enzyme that has an induced-fit active site and catalyzes the reaction above? a. CH3_OH b. CH2=CH_CH3 c. CH3_O_CH2CH3 d. none of the above
Examine this depiction of the initial steps of catalysis for a proteolytic enzyme. Oxyanion hole 93 with In 1-2 sentences, describe the role being played by the amino acid hydroxyl side chain in the step labeled 2. In 1-2 sentences, describe the role of the oxyanion hole. In 1-2 sentences, describe the role of the His is the step labeled 3.
What conclusion can be drawn concerning an inhibitor if Vmax is the same in the presence and absence of the inhibitor? a. KM is smaller in the presence of the inhibitor. Ob. The inhibitor binds to the same active site as the substrate. Oc. The inhibitor binds to the substrate. Od. The inhibitor reacts with a critical residue of the enzyme. Je. The inhibitor can be overcome with sufficiently high concentrations of the substrate.
Part A Which of these is irreversible and why? Match the items in the left column to the appropriate blanks in the sentences on the right. replacement of an ion Submit an ionic bond de Feedback a covalent bond reaction with side chains ion exchange Request Answer When substrate is excluded or the catalytic reaction is blocked. When The The occurs between the active site (containing cystein) and the inhibitor (lead), the occurs and the inhibitor (lead) replaces another ion. is an example of a permanent, irreversible change. Reset Help is an example of a change that can be reversed.