The Enzyme Carbonic Anhydrase Catalyzes the Formation of Carbonic Acid

question 28

Multiple Choice

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 K_m.

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Definitions:

SSR

Sum of Squares due to Regression, an indicator of the explanatory power of the independent variables in a regression model.

SSE

Sum of Squared Errors, a measure used in statistics to quantify the deviation of the model predictions from the actual observed values.

Estimated Regression Equation

An equation derived from regression analysis used to predict the dependent variable based on one or more independent variables.

SSR

Sum of Squares due to Regression, a measure used in statistical analysis to determine the explanatory power of a regression model.