In addition to the purchase price of a property in France, and the various expenses, commissions, and taxes that that purchase entails, there is a further series of outlays that will arise out of your purchase.
When an enzyme binds its substrate, it forms an enzyme-substrate complex. This complex lowers the activation energy of the reaction and promotes its rapid progression by providing certain ions or chemical groups that actually form covalent bonds with molecules as a necessary step of the reaction process.
These pockets contain the active site, which is the area of an enzyme where the substrate binds and the chemical reaction takes place. In the active site, amino acids of the enzyme protein will bind to the substrate. The substrate fits perfectly into the active site of an enzyme, meaning that enzymes are specific for their substrates and not any others. Lactase cannot break down any other disaccharide besides lactose.