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The feedback inhibitor or final product is used to describe the "turning on" of an enzyme. This happens when the final product's concentration is low, the feedback inhibitor, which is also the final product, will move out from the allosteric site in a reaction which is reversible.
The chemical name of the substance more commonly referred to as table sugar is sucrose. This is an abundant sugar that is found in many plants and plant parts but most commonly extracted from canes. The chemical formula for sucrose is C12H22O11.