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Enzyme Reaction

Q1: Which of the following is the best evidence for the lock and key theory of enzyme action?

A Compounds similar in structure to the substrate inhibit enzyme activity

B Enzymes are found in living organisms and speed up certain reactions

C Enzymes speed up reactions by definite amounts

D Enzymes determine the direction of a reaction

ANS:A - Compounds similar in structure to the substrate inhibit enzyme activity

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