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Question

What is the function of copper ions in copper releasing IUDs?

A
They aid in suppressing the sperm motility
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B
They inhibit gametogenesis
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C
They inhibit ovulation
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D
All of these
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Solution

The correct option is A They aid in suppressing the sperm motility
IUDs are the most widely used contraceptives by women in India. These are inserted into the uterus. They are of several types.

The copper releasing IUDs release copper ions within the female reproductive tract. The copper ions suppress the motility of sperms. As the motility of sperms is suppressed, the sperms are unable to reach the fallopian tube where fertilisation is supposed to take place.

Gametogenesis (formation of gametes) takes place in the gonads and copper releasing IUDs do not interfere with it.

Release of the secondary oocyte due to the rupture of the mature Graafian follicle is called ovulation. Ovulation is not affected by copper releasing IUDs.

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