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

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.