As with all catalysts, enzymes do not alter the position of the chemical equilibrium of the reaction. In the presence of an enzyme, the reaction runs in the same direction as it would without the enzyme, just more quickly.
CAUSE, pleading .The reason; the motive. 2. In a replication de injuria, for example, the plaintiff alleges that the defendant of his own wrong, and without the cause by him in his plea alleged, did, &c.
Component cause: An individual event, condition, or characteristic required by a given sufficient cause.  Necessary cause: A component cause present in every sufficient cause.  Often there are many sufficient causes, which may produce a given effect.