
Elise H. answered 11/28/20
Actively Practicing RN with a Passion for Nursing Education!
The lock and key model and the induced fit model are both models that represent how substrates may bind, or fit in, to the active sites on enzymes. The lock and key model states the substrate or the "key" fits specifically into the active site on the enzyme or the "lock." The induced fit model suggests that the shape of the substrate is highly compatible with the shape of the active site on the enzyme, but is not an exact match. The induced fit model is often times compared to how a glove (the enzyme active site) molds to a hand (the substrate). It is not an absolute exact match but the shapes are highly compatible and effective for the purpose.