Vesicle

Definition

A vesicle is a small, membrane-bound sac within a cell that stores or transports substances. Vesicles can move materials into, out of, and within a cell.

Related terms

Cell Membrane:

A thin, flexible barrier surrounding the cell that controls which substances can enter or leave the cell.

Endoplasmic Reticulum (ER): A network of membranous tubules within the cytoplasm of a cell, involved in protein and lipid synthesis.

Golgi Apparatus:

An organelle in cells that modifies, sorts, and packages proteins and lipids for storage or transport out of the cell