18. Which of the statements below correctly a) An enzyme decreases the value of AGrxn. (b) An enzyme increase the activation energy. c) An enzyme decreases the energy of the transition state.. d) An enzyme decreases the value of Keq- 19. If an enzyme-catalyzed reaction has a low rate at low pH and high rate at higher pH, thi for an efficient reaction implies that a group on either the enzyme or the substrate must be (a) protonated c) acidic b) deprotonated d) basic

18. Which of the statements below correctly a) An enzyme decreases the value of AGrxn. (b) An enzyme increase the activation energy. c) An enzyme decreases the energy of the transition state.. d) An enzyme decreases the value of Keq- 19. If an enzyme-catalyzed reaction has a low rate at low pH and high rate at higher pH, thi for an efficient reaction implies that a group on either the enzyme or the substrate must be (a) protonated c) acidic b) deprotonated d) basic

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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#5
Unlike catalysts, what added characteristics do enzymes have? or to Substrate specificity, inactivated by denaturation or b. Substrate Specificity or c. Substrate specificity, inactivated by denaturation, can be regulated
An enzyme has an optimal pH of 7.1 and an optimal temperature at 37° C. Which statement describes a reaction catalyzed by this particular enzyme at a constant temperature of 20° C? the reaction will slow down and then increase as the temperature increases O there is no effect O the reaction will be slower than if it ran at 37° C O the enzyme will provide an alternate active site so the reaction can proceed the enzyme will be denatured
17 Which of the following does not describe an enzyme? speeds up chemical reactions in the body Omade of amino acids and sometimes other organic molecules O requires energy to be synthesized in the body is incorporated into the final.product COremains unchanged before and after the chemical.reaction
What impact on k1 and k-1 would be when a mutation in the enzyme (E) makes the interaction between E and its substrate (S) stronger? a. k1 increase and k-1 decrease b. k1 decrease and k-1 decrease c. k1 decrease and k-1 increase d.
3. The Michaelis Constant for an enzyme is A) the rate of product formation B) 12 Vmax C) the initial turnover rate D) a substrate concentration
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