NEET 2013 · Class 11

Biomolecules

The essential chemical components of many coenzymes are

  1. (A)carbohydrates
  2. (B)vitamins
  3. (C)proteins
  4. (D)nucleic acids.

The NCERT line that answers it

Verbatim line

The essential chemical components of many coenzymes are vitamins, e.g., coenzyme nicotinamide adenine dinucleotide (NAD) and NADP contain the vitamin niacin.

Chapter
Biomolecules
Section
9.8.6 Co-factors
Page
14
Words matched
21 of 21

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 'The essential chemical components of many coenzymes are vitamins' and provides a specific example (NAD/NADP containing niacin), which directly matches the MCQ question and correct answer.

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.

Question text is reproduced from the published NEET 2013 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.