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GCSE Biology · key term
A hormone released by the pituitary gland that stimulates an egg to mature inside a follicle in an ovary.
Used by AQA, Edexcel and OCR
Specification 4.5.3.4, 4.5.3.5, 4.5.3.6 · Paper 2
A pituitary hormone that causes an egg to mature in a follicle in an ovary.
Revise: The Menstrual Cycle and Hormonal ControlFSH causes an egg to mature inside a follicle in an ovary.
A hormone that stimulates an egg to mature in an ovary.
When explaining hormonal control, use linked statements such as “FSH stimulates…”, “oestrogen inhibits…” and “LH triggers…”. Simply listing the four hormone functions does not explain their interactions.
Do not call clomifene a hormone. It is a fertility drug that causes the pituitary gland to release more FSH and LH.
For clomifene, give a complete causal chain: more FSH and LH → more eggs mature in follicles → a greater chance of ovulation.
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Specification 7.8 · Paper 2
Revise: Assisted Reproductive TechnologyTwo pituitary hormones are especially important here: FSH stimulates an egg to mature in a follicle in an ovary, while LH stimulates the mature egg to be released. This release is called ovulation.
Specification B3.2d · Paper 1 (Foundation), Paper 3 (Higher)
A hormone released by the pituitary gland that stimulates an ovarian follicle and its egg to mature.
Revise: Interactions of menstrual hormonesNear the beginning of the cycle, the pituitary gland releases follicle-stimulating hormone (FSH). FSH travels to an ovary and stimulates an ovarian follicle containing an egg to mature.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A hormone released by the pituitary gland that stimulates development of an egg-containing follicle in an ovary and stimulates oestrogen production.
Revise: Hormone InteractionsFSH and LH come from the pituitary gland; oestrogen and progesterone are produced in the ovaries. What matters is not just what each hormone does, but how one hormone changes the release of another.