NEET 2017 · BiologyPoriferaPrevious Year Question
In case of poriferans the spongocoel is lined with flagellated cells called:
Answer: (C) Choanocytes. Answer: Choanocytes line the spongocoel.
- A.Ostia
- B.Oscula
- C.Choanocytes✓
- D.Mesenchymal cells
Correct Answer
(C) Choanocytes
Solution & Explanation
Answer: Choanocytes line the spongocoel. Solution: In sponges, the flagellated collar cells called choanocytes line the spongocoel and the canals, driving the water current. Ostia are the incurrent pores and the osculum is the single large exit opening. NCERT Reference: Page 40, lines 16-17 (Choanocytes line spongocoel and canals)
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