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
Answer:A
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