+A **vesicle** is a tiny, fluid-filled sac enclosed by a [membrane](/wiki/membrane) within a [cell](/wiki/cell). These dynamic structures facilitate the storage and [transport](/wiki/transport) of substances, playing a vital role in cellular life.
+## See also
+- [Endocytosis](/wiki/endocytosis)
+- [Exocytosis](/wiki/exocytosis)
+- [Organelle](/wiki/organelle)
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