NEET 1997 · Class 11

Plant Kingdom

Brown algae is characterised by the presence of (1997)

  1. (A)fucoxanthin
  2. (B)haematochrome
  3. (C)phycocyanin
  4. (D)phycoerythrin

The NCERT line that answers it

Verbatim line

They vary in colour from olive green to various shades of brown depending upon the amount of the xanthophyll pigment, fucoxanthin present in them.

Chapter
Plant Kingdom
Section
3.1.2 Phaeophyceae
Page
3
Words matched
23 of 24

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 that brown algae's color depends on the amount of fucoxanthin, which directly identifies fucoxanthin as the characteristic pigment of brown algae, matching the correct answer.

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Question text is reproduced from the published NEET 1997 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.