Definition
A flagellated cell is a cell that possesses one or more flagella: whip-like appendages used for movement or creating currents. 🌊 Think of them like tiny propellers or oars on a boat. These cells use their flagella to propel themselves through liquid or to move liquid past the cell. In sponges, choanocytes are specialized flagellated cells. These cells line the interior of the sponge and use their flagella to create water currents for filter feeding. It's like the engine that drives the sponge's feeding system. Some bacteria and protists also use flagellated cells.