Granule (cell biology)
Small particle, often in plants / From Wikipedia, the free encyclopedia
For other uses, see Granule (disambiguation).
In cell biology, a granule is a small particle barely visible by light microscopy. The term is most often used to describe a secretory vesicle containing important components of cell phyisology.[1] Examples of granules include granulocytes, platelet granules, insulin granules, germane granules, starch granules, and stress granules.