Pancreatic beta cells are especially rich in which type of organelle?

Pancreatic beta cells are rich in rough endoplasmic reticulum due to their role in insulin production. These cells are found within pancreatic islets and make up about 75 percent of each islet.

Explanation:

Pancreatic beta cells are especially rich in rough endoplasmic reticulum. The rough endoplasmic reticulum is an organelle that plays a critical role in protein synthesis and membrane production. This is important for pancreatic beta cells, as these cells are responsible for the production of insulin, a hormone that regulates glucose levels in the bloodstream.

Furthermore, the pancreas contains clusters of cells called pancreatic islets, which include four main types of cells. Among these are the beta cells, which make up approximately 75 percent of each islet. These beta cells directly interact with the blood vessels, into which they secrete their endocrine hormones.

To summarize, due to their role in insulin production, pancreatic beta cells are rich in rough endoplasmic reticulum to assist in the synthesis of proteins necessary for their functions.

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