Definition of solubility. 1) The amount of a solute that will dissolve in a specific solvent under given conditions.
The small intestine is where most chemical digestion takes place. Most of the digestive enzymes in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct. These enzymes enter the small intestine in response to the hormone cholecystokinin, which is produced in response to the presence of nutrients.
The pancreas secretes enzymes and releases them into the small intestines to break down food. Without these enzymes in the digestive system, food cannot be broken down into nutrients that the body needs. (through pancreatic duct)