NEET 2006 · Class 12

Human Health and Disease

Mast cells secrete

  1. (A)haemoglobin
  2. (B)hippurin
  3. (C)myoglobin
  4. (D)histamine

The NCERT line that answers it

Verbatim line

Allergy is due to the release of chemicals like histamine and serotonin from the mast cells.

Chapter
Human Health and Disease
Section
7.2.5 Allergies
Page
10
Words matched
16 of 16

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

How this line gives the answer

0, emb=0.8429, combined=0.9057). Verified: high — The NCERT span explicitly states that mast cells release histamine, which directly matches the correct answer option D.

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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.

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Question text is reproduced from the published NEET 2006 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.