Cu ions released from copper-releasing intra uterine devices (IUDs) (2010)

(A)make uterus unsuitable for implantation
(B)increase phagocytosis of sperms
(C)suppress sperm motility
(D)prevent ovulation

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 'Cu ions released suppress sperm motility', which directly matches the correct answer option C.

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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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