System causes the chemical action of the enzymes in the digestive juices from which the food is built up (saliva gastric pancreatic  nucific bio x4 and intestinal juices) for the degradation of the macromolecules in nutrients Molecular simplification of the various types of foods (carbohydrates proteins fats) takes place in the digestive tract carbohydrates such as starch (long chains of glucose molecules) are split into…