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.
There are 3 roles the pancreas serves in regard to digestive enzymes. First, it produces enzymes, in an inactive form, within the cells of the organ. Second, it stores these inactive enzymes, and third, the pancreas secretes the inactive enzymes into the duodenal portion of the small intestine at an appropriate time.