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Biology

The transition state is an important intermediate that can influence the rate of an exergonic reaction.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter6: Energy, Enzymes, And Biological Reactions

Section: Chapter Questions

Problem 15TYK

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Question

Q14. The transition state is an important intermediate that can influence the rate of an exergonic reaction.

Which of the following statements about the transition state is correct?

A. At the transition state reacting molecules are the most stable.

B. The more molecules that can reach the transition state the faster the reaction will be.

C. The transition state increases in the presence of an enzyme.

D. If the transition state is high enough the reaction can move from being exergonic to being endergonic.

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Q14. The characterization of an enzyme by measuring the rate of its reaction includes determining the values for both Vmax and Km. Which of the following statements about these two parameters is correct? A. The presence of a competitive inhibitor will result in a lower Vmax. B. The Km increases as enzyme-substrate affinity increases. C. A reaction that has a high Vmax may have a low Km. D. An increase in enzyme concentration will only affect the Km not the Vmax.
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