Question

Copper ions released from copper – releasing Intra Uterine Devices (IUDs)-

• A. Make uterus unsuitable or implantation
• B. Prevent ovulation
• C. Increases phagocytosis of sperms
• D. Suppress sperm motility

Answer 1

The correct option is D Suppress sperm motility

Intrauterine devices are inserted by doctors in the uterus through the vagina.
Copper ions release by copper - releasing intrauterine devices suppress sperm motility. This in turn, suppress fertilising capacity of sperms.

So, the correct answer is- option d.