The pancreas in is an organ found in many animals. It makes enzymes that are used by other parts of the digestive system. Enzymes are proteins that help speed up reactions in the body. Which type...

The pancreas in is an organ found in many animals. It makes enzymes that are used by other parts of the digestive system. Enzymes are proteins that help speed up reactions in the body. Which type of cell structure[s] might produce those enzymes? Explain your answer.

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trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

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Enymes are proteins that can catalyze chemical reactions. The pancreas is a unique organ as it functions as a gland with different pathways for its secretions. As an endocrine system organ, it produces hormones --chemical messengers that travel in the blood to target organs and as an exocrine organ, it produces digestive enzymes that are secreted into the gastrointestinal tract to help hydrolyze (digest) foods. 

In the pancreas' acinar cells, protein synthesis occurs and results in the formation of pancreatic enzymes. The organelles responsible for the production of those enzymes are called rough ER which are studded with ribosomes and carry out protein synthesis. These proteins are produced, processed and eventually secreted. 

In order for proteins to be functional, they must undergo modification after the primary structure has been determined by mRNA instructions. This includes protein folding and being sent and further processed in the Golgi apparatus. There are zymogen granules within the cells for storage of pancreatic enzymes until needed after having consumed a meal.

Eventually, the secretory granule containing its enzymes moves to the plasma membrane and fuses to it which will allow the digestive enzymes to be released when needed. 

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