OCR General Certificate of Secondary Education (GCSE) Biology Practice Exam

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What is the primary function of the contraceptive patch?

It prevents the meeting of sperm and egg
It is a surgical method of contraception
It prevents ovulation by inhibiting the production of FSH
It provides a physical barrier during intercourse

The correct answer is: It prevents ovulation by inhibiting the production of FSH

The primary function of the contraceptive patch is to prevent ovulation by inhibiting the production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The patch releases hormones, specifically estrogen and progestin, into the bloodstream. These hormones work to suppress the natural hormonal signals that stimulate the ovaries to release an egg. As a result, ovulation does not occur, which means there is no egg available for sperm to fertilize. This method of hormonal contraception is effective in reducing the likelihood of pregnancy, and its transdermal application (the patch being placed on the skin) allows for a steady release of hormones over a week, making it a convenient option for many individuals seeking to manage their reproductive health.