Question 1 You are observing a reaction that is occurring fairly slowly. If you add an enzyme that can catalyze the reaction, what would you expect to observe? O It is impossible to predict. The reaction rate would increase. O The reaction rate would decrease. O The reaction rate would be unchanged.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Question 1
1 pts
You are observing a reaction that is occurring fairly slowly. If you add an enzyme that can catalyze the reaction, what would you
expect to observe?
O It is impossible to predict.
The reaction rate would increase.
The reaction rate would decrease.
The reaction rate would be unchanged.
Question 2
1 pts
How does an enzyme have the effect you identified in the previous question?
It decreases the energy state of the substrates and allows the reaction to proceed toward the product.
It increases the energy state of the products and allows the reaction to proceed.
It raises the activation energy and allows the substrates to be converted to products more readily.
It increases the energy state of the substrates and allows the reaction to proceed toward the product.
It lowers the activation energy and allows the substrates to be converted to products more readily.
It decreases the energy state of the products and allows the reaction to proceed.
Transcribed Image Text:Question 1 1 pts You are observing a reaction that is occurring fairly slowly. If you add an enzyme that can catalyze the reaction, what would you expect to observe? O It is impossible to predict. The reaction rate would increase. The reaction rate would decrease. The reaction rate would be unchanged. Question 2 1 pts How does an enzyme have the effect you identified in the previous question? It decreases the energy state of the substrates and allows the reaction to proceed toward the product. It increases the energy state of the products and allows the reaction to proceed. It raises the activation energy and allows the substrates to be converted to products more readily. It increases the energy state of the substrates and allows the reaction to proceed toward the product. It lowers the activation energy and allows the substrates to be converted to products more readily. It decreases the energy state of the products and allows the reaction to proceed.
The enzyme pepsin is active in your stomach (at around pH 4), where it catalyzes a reaction that breaks bonds between amino acids in
proteins. Would pepsin be expected to remain active at a neutral pH of 7? Why or why not?
You do NOT need a long essay, a few sentences is usually enough to explain why or why not.
Transcribed Image Text:The enzyme pepsin is active in your stomach (at around pH 4), where it catalyzes a reaction that breaks bonds between amino acids in proteins. Would pepsin be expected to remain active at a neutral pH of 7? Why or why not? You do NOT need a long essay, a few sentences is usually enough to explain why or why not.
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