NEET 2017 · Class 11

Animal Kingdom

In case of poriferans, the spongocoel is lined with flagellated cells called

  1. (A)oscula
  2. (B)choanocytes
  3. (C)mesenchymal cells
  4. (D)ostia

The NCERT line that answers it

Verbatim line

**Choanocytes** or collar cells line the spongocoel and the canals.

Chapter
Animal Kingdom
Section
4.2 CLASSIFICATION OF ANIMALS
Page
3
Words matched
10 of 10

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'Choanocytes or collar cells line the spongocoel', which directly matches the MCQ's question about flagellated cells lining the spongocoel in poriferans.

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Question text is reproduced from the published NEET 2017 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.