Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalysthttp://goldbook.iupac.org/C00876.html, which is not consumed in the catalyzed reaction and can continue to act repeatedly.
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
Enzymes are macromolecular biological catalysts.
Isopropylmalic acid (isopropylmalate) is an intermediate in the biosynthesis of leucine, synthesized from oxoisovalerate by 2-isopropylmalate synthase and converted into isopropyl-3-oxosuccinate by 3-isopropylmalate dehydrogenase.
Nicotinamide adenine dinucleotide (NAD) is a coenzyme found in all living cells.