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5.3 Hormonal coordination in humans

5.3 Hormonal coordination in humans

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Question 26

Table 1 gives information about three different methods of contraception.

Method of contraceptionNumber of pregnancies per 100 women in one yearFeatures and possible side effects
Hormonal implant0.050.050.05Lasts for 333 years; releases hormones; can cause mood swings or irregular bleeding.
Diaphragm with spermicide121212Must be inserted before sex; no hormones; can cause urinary tract infections.
Copper IUD0.80.80.8Lasts for up to 101010 years; no hormones; can make periods heavier or more painful.

A woman is choosing a contraceptive method. She wants a method that:

  • has a low pregnancy rate (fewer than 222 pregnancies per 100 women per year)
  • does not use hormones (to avoid mood swings)
  • does not require daily memory or preparation immediately before sex
a.

Identify which method of contraception from Table 1 best meets all of her requirements.

[1]
b.

Suggest two disadvantages of the chosen method, using information from Table 1 and your own knowledge.

[2]
Markscheme

5.3 Hormonal coordination in humans Questions

  1. GCSE
  2. /Biology
  3. /5.3 Hormonal coordination in humans

62 exam-style questions on AQA GCSE Biology 5.3 Hormonal coordination in humans, covering 5.3.1 Human endocrine system, 5.3.2 Control of blood glucose concentration, 5.3.3 Maintaining water and nitrogen balance in the body, 5.3.4 Hormones in human reproduction, 5.3.5 Contraception, 5.3.6 The use of hormones to treat infertility (HT only), and 5.3.7 Negative feedback (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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