NEET 2000 · Class 12

Reproductive Health

What is the work of copper-T? (2000)

  1. (A)To inhibit ovulation
  2. (B)To inhibit fertilization
  3. (C)To inhibit implantation of blastocyst
  4. (D)To inhibit gametogenesis

The NCERT line that answers it

Verbatim line

IUDs increase phagocytosis of sperms within the uterus and the Cu ions released suppress sperm motility and the fertilising capacity of sperms.

Chapter
Reproductive Health
Section
3.2 POPULATION STABILISATION AND BIRTH CONTROL
Page
3
Words matched
22 of 22

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 copper ions released by IUDs 'suppress sperm motility and the fertilising capacity of sperms,' which directly supports that copper-T works to inhibit fertilization.

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Question text is reproduced from the published NEET 2000 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.