OCR GCSE Biology Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success

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What is a diaphragm used for?

It prevents sperm from entering the uterus

The diaphragm is a barrier method of contraception used to prevent sperm from entering the uterus. It is a dome-shaped device made of flexible latex or silicone that is inserted into the vagina prior to intercourse, covering the cervix. By doing so, it acts as a physical barrier that blocks sperm from reaching the egg, thereby preventing fertilization. It does not affect hormone levels, nor does it have a permanent effect on fertility. Other options do not accurately describe the function of a diaphragm; they pertain to different types of contraceptive methods that either disrupt hormonal cycles or provide a more permanent solution.

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It stops ovulation

It provides permanent contraception

It is a hormonal birth control method

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