This makes it easier for fat-splitting enzymes to digest the fat molecules. The process of breaking up fat globules is called emulsification. A majority of the pancreas is made up of the cells that produce pancreatic juice. Pancreatic lipase is the enzyme that digests fat. Carboxypeptidase, chymotrypsin, and trypsin areprotein-splitting enzymes.
Nucleases are enzymes that break down nucleic acid molecules.
Nerve actions and hormones regulate the release of pancreatic juice. Secretin is a hormone that stimulates the secretion of pancreatic juice. Secretin is secreted when the chyme enters the duodenum. The high concentration of bicarbonate ions neutralize the acidity of the chyme and makes a more suitable environment for the digestive enzymes in the intestine.