Enzyme Reaction
Denaturation of an enzyme refers to the

formation of the enzymes proper shape
loss of the enzymes proper shape
formation of a new isozyme for that enzyme
improper arrangement of the enzyme in a metabolic pathway

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

Compounds similar in structure to the substrate inhibit enzyme activity
Enzymes speed up reactions by definite amounts
Enzymes are found in living organisms and speed up certain reactions
Enzymes determine the direction of a reaction

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