This is catalyzed by Pyruvate kinase. So we have Pep, which stands for phosphateenopyruvate. In the presence of these two, we basically transform that into Pyruvate and ATP and this releases 16.7 kilojoules of energy. Now, if we sum these values up, so 33.5 plus 22.2 basically gives us 55.7 and then 55.7 plus 16.7 gives us 72.4. So basically these three steps alone release 72.4 kilojoules of energy every time a single glucose molecule is broken down. And that makes up the predominant amount of this total 96.2 kilojoules per mile.