Question

What is meant by collar cell?

Answer 1

Collar cells:

1. Choanocytes are another name for collar cells.
2. Sponge cells make up the majority of collar cells.
3. Flagellated structures found in collar cells line the sponge cavity with endodermal cells.
4. These flagellated structures aid in both food capture and movement.
5. They help to get the water to flow through the sponge, they first whip its flagella back and forth.
6. The water removes the wastes while bringing in nutrients and oxygen.
7. The collar cells' sticky collars attract food particles that are carried in with water.