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Question

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


A

make uterus unsuitable for implantation

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B

increase phagocytosis of sperms

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C

suppress sperm motility

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D

prevent ovulation

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Solution

The correct option is C

suppress sperm motility


Copper ions realeased from copper releasing IUDs decrease the sperm's ability to move and prevent the sperm from passing through the cervical mucus and going on to fertilize the egg.

An example of a copper releasing IUD is copper-T. It is made of a flexible, "T" shaped piece of plastic wrapped with a thin copper containing wire.


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