Answer:
According to the given lock and key model the active site of an enzyme has a Rigid shape while the induced fit model describes the active site as Flexible shape.
Explanation:
Here the model being described is Lock and Key model.
Lock and Key model: In this model the enzyme behaves as Lock and the substrate is as a Key.
So, it mentions that only the right and correct key will fit in the enzyme's active site.
The active sites which are present consists of a specific substrate shape i.e. called as Rigid which only gets reacted with the substrate that perfectly fits into it.
Induced Fit Model: In this type of models enzymes are been considered as flexible and their is a partial role of substrate which determines the final outcome of the enzyme.
The lock and key model states that the active site of an enzyme has a Rigid
shape while the induced fit model describes the active site as having a
flexible shape.
The Lock and Key model is the model that has the enzyme serving as the
Lock and the substrate as the key. This model explains that an enzyme
acts or fits into only one type of substrate which makes it Rigid.
The Induced Fit Model have flexible shapes as result of the substrate also
playing a role in the alignment of the active sites of the enzyme for action.
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