Year 11 - Science
Using hormones to treat infertility
Hormones and human reproduction
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit covers the roles of hormones in reproduction, including the menstrual cycle and the effects of FSH, LH, oestrogen, and progesterone. It explains contraception methods, and fertility treatments, and evaluates their social, economic, and environmental impacts.
Lesson Summary
You will learn to describe the use of hormones to treat some types of infertility in humans.
Key Notes
- Infertility is the inability to become pregnant (conceive).
- In adult human females, some types of infertility are caused by problems with hormones that control the menstrual cycle.
- Hormones can be used as a treatment for these types of infertility.
- The use of hormones in IVF treatment.
Vocabulary To Learn
- infertility: The inability to become pregnant (conceive).
- menstrual cycle: A monthly cycle which involves the maturation and release of an egg, and menstruation.
- IVF: In vitro fertilisation, in which an embryo is formed in a laboratory and then inserted into the uterus of the mother.
- FSH: Follicle stimulating hormone, which matures follicles containing eggs in the ovaries.
- embryo: A development stage when a fertilised egg starts to divide.
Common Mistakes To Avoid
- IVF is highly effective without side effects. People can already choose the features of a baby. All people can have IVF from the NHS.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Infertility is the inability to become pregnant (conceive). In adult human females, some types of infertility are caused by problems with hormones that control the menstrual cycle.
2. Define this scientific word and use it in context. 'infertility'
The inability to become pregnant (conceive). Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: IVF is highly effective without side effects. People can already choose the features of a baby. All people can have IVF from the NHS. Correction: IVF is less than 40% effective and this decreases with the age of the mother over 35. Genetic testing of embryos can be used to look for a disease, but genes cannot be altered. There is criteria for receiving IVF from the NHS and it is limited.
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