NEET 1991 · Class 11

Animal Kingdom

The excretory structures of flatworms/Taenia are

  1. (A)flame cells
  2. (B)protonephridia
  3. (C)malpighian tubules
  4. (D)green glands

The NCERT line that answers it

Verbatim line

Specialised cells called flame cells help in osmoregulation and excretion.

Chapter
Animal Kingdom
Section
4.2.4 Phylum – Platyhelminthes
Page
5
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=0.9849, combined=0.991). Verified: high — The span explicitly states 'Specialised cells called flame cells help in osmoregulation and excretion' for flatworms, which directly matches the correct answer 'flame cells' and distinguishes it from the other options.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 1991 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.