The specificity of an enzyme to a substrate is currently best explained by
A) the "lock and key" model.
B) the induced-fit model.
C) the allosteric model.
D) the receptor model.
E) the synthase complex model.

Question

Quizplus · Accepted Answer

The induced-fit model is currently the best explanation for the specificity of an enzyme to a substrate. This model suggests that the enzyme's active site changes shape to accommodate and bind to the substrate, rather than having a rigid, pre-existing shape like the lock and key model suggested.

The Specificity of an Enzyme to a Substrate Is Currently