The enzyme pictured below is shown in two configurations, A (open)and B (closed).Upon binding substrate in the active site, the enzyme converts the structure shown in B.Which of the following is true based on the given information?
A)The enzyme requires a high concentration of substrate to function
B)This example exemplifies the "lock-and-key" model.
C)This enzyme must require ATP.
D)This example exemplifies the of "induced fit" model.
E)None of these are true.

Question

The enzyme pictured below is shown in two configurations, A (open)and B (closed).Upon binding substrate in the active site, the enzyme converts the structure shown in B.Which of the following is true based on the given information? 
A)The enzyme requires a high concentration of substrate to function 
B)This example exemplifies the "lock-and-key" model. 
C)This enzyme must require ATP. 
D)This example exemplifies the of "induced fit" model. 
E)None of these are true.

Quizplus · Accepted Answer

The given information describes the induced fit model, in which the binding of substrate induces a change in the enzyme's structure. This model contrasts with the lock-and-key model, which emphasizes the complementarity of the substrate and enzyme's active site. There is no information provided that suggests a high concentration of substrate or the requirement for ATP.

The Enzyme Pictured Below Is Shown in Two Configurations, a (Open)and