What is granulae?

Granulae are small, granular structures found within cells. They are typically composed of various proteins, lipids, and other molecules, and can play a variety of roles in cellular functions.

In some cell types, granulae are used for storage and release of specific molecules, such as hormones or enzymes. For example, pancreatic beta cells contain granulae that store and release insulin. Mast cells contain granulae that store and release histamine, which is involved in the inflammatory response.

Granulae can also be involved in cellular defense and response to stress. Neutrophils, a type of white blood cell, contain granulae that release antimicrobial molecules to help fight infections. Additionally, granulae can contain enzymes that break down damaged or foreign molecules within the cell.

Overall, granulae are important structures within cells and play vital roles in various cellular functions.