Q. Copper ions released from copper-releasing intra uterine devices (IUDs) :

Q. Copper ions released from copper-releasing intra uterine devices (IUDs) :

(a) Prevent ovulation

(b) Make uterus unsuitable for implantation

(c) Increase phagocytosis of sperms

(d) Suppress sperm motility

Solution :

Correct option : D Copper ions release by copper-releasing intrauterine devices suppresses sperm motility. Intrauterine devices are inserted by doctors in the uterus through the vagina. They are available as the non-medicated IUDs, copper-releasing IUDs, and hormone-releasing IUDs, these IUDs increase phagocytosis of sperms within the uterus and the Cu ions suppress sperm’s motility and fertilizing capacity. So, the correct answer is ‘Suppress sperm motility’