Enzyme Reaction
If the Keq for an enzymatic reaction is greater than 1, the reaction

can not occur without the input of energy
both (a) and (b)
none of these
will be endergonic

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

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

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