The enzyme carbonic anhydrase catalyzes the formation of carbonic acid from carbon dioxide and water.Imagine that you have two sealed tubes with carbon dioxide gas above a buffer containing water and carbon dioxide.One tube has carbonic anhydrase and the other does not.After 24 hours,both tubes are at equilibrium.Which statement below accurately describes the conditions in the tubes?
A) The tube with carbonic anhydrase will have a lower concentration of carbon dioxide and a higher concentration of carbonic acid than the tube with any enzyme.
B) The tube with carbonic anhydrase will have a higher concentration of carbon dioxide and a lower concentration of carbonic acid than the tube with any enzyme.
C) The tubes will have equal concentrations of carbon dioxide and carbonic acid.
D) The tube with carbonic anhydrase will have a higher concentration of carbonic acid than the tube with any enzyme,but the concentration of carbon dioxide will be the same in both tubes.
E) It is not possible to determine the relative concentrations of the products and reactants without more information about carbonic anhydrase,such as the Km.
Correct Answer:
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Q24: Of the following,which is used to inhibit
Q25: Enzyme regulation may occur by several methods.Which
Q26: Covalent modification
A)can activate an enzyme.
B)affects the activity
Q27: The induced-fit model
A)was proposed by Hans Buchner.
B)distorts
Q28: A linear relationship between Vmax and enzyme
Q30: Feedback inhibition prevents cells from
A)the harmful effects
Q31: An allosteric inhibitor
A)increases the rate of substrate
Q32: A competitive inhibitor
A)binds at a site other
Q33: An example of an irreversible inhibitor is
A)a
Q34: The type of inhibitor that binds to
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