Â© 2017 AccuWeather, Inc. All Rights Reserved. AccuWeather.com is a registered trademark of AccuWeather, Inc. Terms of usage under which this service is provided Privacy Statement | Ad Choices
Catabolic reactions give out energy. They are exergonic. In a catabolic reaction large molecules are broken down into smaller ones. For example, the reverse of the condensation reactions described above, i.e. hydrolysis reactions, are catabolic.
Glycolysis is the. preparatory catabolic pathway that begins the breakdown and oxidation of glucose and other hexoses for. energy. As originally characterized, glycolysis is a sequence of 10 enzyme catalyzed reactions during which. glucose is converted into two molecules of the Î±-keto acid, pyruvate.