An enzyme's specificity can be due to: Group of answer choices amount of substrate available molecular recognition based on structural complementarity the ratio of catalyzed rate to the uncatalyzed rate of reaction. amount of enzyme produced by the cell.

molecular recognition based on structural complementarity

Explanation:

Enzymes work on the basis of a lock and key model. The substrates on which enzymes act are specifically tailored to suit the shape of the enzyme.

As such, the enzyme just fits into the substrate in the same way as the right key fits into a lock.

Hence, molecular recognition based on structural complementarity is the basis for the specificity of enzyme activity.

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