I became quieter, more organized and I finally stopped losing my keys. 1  I started taking ADD medication relatively late in life, at least for a millennial. I was 20, an honors student at a good university and I'd made it through my relatively successful academic career without being medicated.
(Science: Biochemistry). A catalyst or a chemical produced by cells to generally speed up specific chemical reaction without changing the chemical reaction at the end of the reaction.upplement. Enzyme is usually a protein molecule with a characteristic sequence of amino acids that fold to produce a specific three-dimensional structure, which gives the molecule unique properties. Other molecule with catalytic activity is ribozyme, an enzyme made of RNA rather than protein.
Terms. 1  apoenzyme an inactive haloenzyme lacking a cofactor. 2  reaction A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. 3  enzymes Enzymes are large biological molecules responsible for the thousands of chemical interconversions that sustain life.