Moistening saliva fed into the mouth from nearby glands starts the process of chemical digestion using specialized proteins called enzymes. Secreted at various points along the digestive tract ...

The changes are usually permanent. Enzymes work inside and outside cells, for instance in the digestive system where cell pH is kept at 7.0 to 7.4. Cellular enzymes will work best within this pH ...

The pancreas is an integral part of the digestive system. It makes digestive enzymes and fluids which are released in the duodenum to help break down proteins, carbohydrates and fats. This is called ...