Hydrolyse eines Fettes?

In the laboratory, esters, and fats are esters, by acids and by bases. In the second case, the fatty acid residues are formed, but that doesn’t matter.

Enzymes have their own tricks. In the active center there is, for example, a group which increases the polarization of the carbon atom to be attacked or generates molecular voltages, another group providing the attacker.

In any case, it is different from the reagent glass chemistry, but in any case you have to explore or research it.

For the beginning, you can decide yourself whether Wikipedia further aid:

The lipase has a catalytic triad from the amino acids aspartic acid, histidine and serine in its active center. The aspartic acid extracts a proton from the histidine and activates it. The catalytically active histidine in turn removes a proton from the serine, whereby the nucleophilia of the serine residue increases. This can now act on the carbonyl carbon of a substrate ester which is already located in the active center. A tetrahedral intermediate product is formed from which an acyl-enzyme complex is formed. The product fatty acid and the original enzyme are freed by deacetylation in a hydrolysis step.