Structural Biochemistry/Free energy - Standard Gibbs Free Energy of Formation. 1  When we have to consider the relationship between Gibbs free energy and the standard-state free energy of a reaction, we use this equation... 2  to calculate Gibbs free energy at that of time under a specific circumstances.
digestive system definition. The organs and glands in the body that are responsible for digestion. The digestive system begins with the mouth and extends through the esophagus, stomach, small intestine, and large intestine, ending with the rectum and anus. Other organs in this system include the liver, pancreas, gallbladder, and appendix.
3.1 Digestion. 1  Anatomy of the digestive tract Gastrointestinal (GI) tract. Mouth mouth. 2  The muscular action of digestion Peristalsis. Stomach action. 3  The secretions of digestion catalyst. hydrolysis.  The final stage stools å¤§ä¾¿. waste matter feces discharged from the colon; also called feces.