Question

Choanocytes perform [BVP 2001]
A) Nutritions
B) Excretion
C) Reproduction
D) Secretion of spicules

Answer 1

Choanocytes (also known as "collar cells") are cells that line the interior of asconoid, syconoid and leuconoid body type sponges that contain a central flagellum, or undulipodia, surrounded by a collar of microvilli which are connected by a thin membrane. They make up Choanoderm, a type of cell layer found in sponges.