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

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What is a barrier method of contraception designed to do?

  1. Prevent pregnancy by stopping ovulation

  2. Prevent egg and sperm from meeting

  3. Alter hormonal levels in the body

  4. Provide permanent contraception

The correct answer is: Prevent egg and sperm from meeting

The correct answer identifies that a barrier method of contraception works by preventing egg and sperm from meeting. Barrier methods, such as condoms and diaphragms, physically obstruct sperm from entering the uterus and reaching an egg, thereby preventing fertilization. This method does not involve hormonal alterations, so it does not stop ovulation or change hormonal levels, which distinguishes it from hormonal contraceptives that function in such a way. Additionally, barrier methods are reversible and not designed for permanent contraception, meaning they can be utilized on an as-needed basis without committing to a permanent solution. This makes the function of barrier methods clear and distinct from other forms of contraception, highlighting their role in preventing fertilization through physical barriers.

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