NEET 1998 · Class 12

Human Health and Disease

In mammals, histamine is secreted by

  1. (A)lymphocytes
  2. (B)mast cells
  3. (C)fibroblasts
  4. (D)histiocytes

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=0.8723, combined=0.9234). Verified: high — The span explicitly states 'histamine... from the mast cells', which directly and conclusively identifies mast cells as the source of histamine in mammals, matching the MCQ's correct answer.

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Question text is reproduced from the published NEET 1998 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.