Which of the following is the best evidence for the lock and key theory of enzym

Question

Which of the following is the best evidence for the lock and key theory of enzyme action?

Options:

A . Enzymes determine the direction of a reaction

B . Compounds similar in structure to the substrate inhibit enzyme activity

C . Enzymes speed up reactions by definite amounts

D . Enzymes are found in living organisms and speed up certain reactions

Answer: Option B

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