Everything about Choanocyte totally explained
Choanocytes (also known as "collar cells") are
cells that line the interior of
Asconoid sponges that contain a central
flagellum surrounded by a collar of
microvilli. It is the closest family member to the free-living ancestor called
choanoflagellate. The flagellae beat regularly, creating a water flow across the microvilli which can then
filter nutrients and other
food from the water taken from the collar of the sponge. Food particles are then phagocytosed by the cell.
Choanocytes line the radial canals in syconoid sponges and form chambers in leuconoid sponges.
They bear more than a passing resemblance to
Choanoflagellates.
Collar Cells are structures with flagella that help to swish water through the sponge to deliver food and oxygen to its body cells and carry away wastes
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