In the Lock-And-Key Model of Enzyme Action, the Enzyme Active

question 40

Multiple Choice

In the lock-and-key model of enzyme action, the enzyme active site is thought of as

• A)an area of the enzyme that can adjust to fit the substrate shape.
• B)a lock that bars a noncompetitive inhibitor from reacting.
• C)a hydrophilic area on the enzyme surface.
• D)a rigid, nonflexible shape that fits the substrate exactly.
• E)a key-like shape that fits into a pocket of the substrate surface.