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STD 12 - 3. reproductive health — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 3. reproductive health1 Mark
MCQ
The function of copper ions in copper releasing $IUDs$ is
  • A
    they inhibit gametogenesis
  • B
    they make uterusunsuitable for implantation
  • C
    they inhibit ovulation
  • ✓
    they suppress sperm motility and fertilising capacity of sperms.
✓

Answer

Correct option: D.
they suppress sperm motility and fertilising capacity of sperms.
d
(d) : Copper releasing $IUDs (i.e., CuT, LNG-20)$ are placed in the uterus of the females. They are an efficient birth control methods. Copper ions released by them suppress motility and fertilising capacity of the sperms.

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