21. The cells are filled with granules containing the digestive enzymes . 22. The pancreatic duct delivers substances such as bicarbonate and digestive enzymes to the duodenum. 23. Secretin is a digestive enzyme best known as a controversial, unproven treatment for autism. 24. Trypsin, a powerful digestive enzyme , is generated in the pancreas. 25. Isocitrate dehydrogenase is a digestive enzyme that is used in the citric acid cycle. 26. Lipase is a digestive enzyme that catalyses the hydrolysis of lipids ( fats ). 27. :: : Animal toxins may have mutated from digestive enzymes . 28. One of the digestive enzymes is lactoferrin ( the " ferrin " referes to iron. 29. Between them are found unciliated gland cells thought to be capable of synthesizing digestive enzymes . 30. The pancreas is a gland behind the stomach that secretes digestive enzymes and produces insulin.
