4.3.1.6 During puberty reproductive Describe secondary 1 Watch BBC video clip about Research the effects of hormones cause secondary sexual characteristics puberty. testosterone and sex characteristics to of boys and girls. oestrogen on secondary Describe the changes that develop. Oestrogen is the sexual characteristics in Explain the cause of occur in boys and girls during main female reproductive boys and girls. these changes in boys puberty and discuss what hormone produced in the and girls and their causes these changes. Useful for discussion ovary. At puberty eggs begin relevance in about the reliability of Watch BBC video clips of to mature and one is reproduction. research, in this case ovulation and the menstrual released approximately every research into hormonal Describe the cycle. Discuss how hormones 28 days. This is called changes in new fathers. menstrual cycle and control the changes seen. ovulation. Testosterone is the fertility including the main male reproductive Use a month calendar page to role of hormones. hormone produced by the colour code days according to testes and it stimulates Oestrogen is secreted hormone levels (make a sperm production. by the ovaries. It flickbook to show changes). inhibits production of Several hormones are Use a model, eg diagram, FSH and stimulates involved in the menstrual chart, animation etc, to show release of LH. It cycle of a woman. the names, sites of production makes the uterus Follicle-stimulating and effects of FSH, LH, lining grow again after hormone (FSH) causes oestrogen and progesterone in menstruation. maturation of an egg in the menstrual cycle. Higher the ovary. Progesterone is Tier will require more detail. secreted by the Luteinising hormone (LH) Discussion do male and – follicle in the ovary stimulates the release of female hormone levels after ovulation. It the egg. fluctuate and why? Live inhibits FSH and LH Oestrogen and science article provides production and progesterone are extension material for maintains the lining of
4.3.1.6 During puberty reproductive hormones cause secondary sex characteristics to develop. Oestrogen is the main female reproductive hormone produced in the ovary. At puberty eggs begin to mature and one is released approximately every 28 days. This is called ovulation. Testosterone is the main male reproductive hormone produced by the testes and it stimulates sperm production. Several hormones are involved in the menstrual cycle of a woman. Follicle-stimulating hormone (FSH) causes maturation of an egg in the ovary. Luteinising hormone (LH) stimulates the release of the egg. Oestrogen and progesterone are Describe secondary sexual characteristics of boys and girls. Explain the cause of these changes in boys and girls and their relevance in reproduction. Describe the menstrual cycle and fertility including the role of hormones. Oestrogen is secreted by the ovaries. It inhibits production of FSH and stimulates release of LH. It makes the uterus lining grow again after menstruation. Progesterone is secreted by the follicle in the ovary after ovulation. It inhibits FSH and LH production and maintains the lining of 1 Watch BBC video clip about puberty. Describe the changes that occur in boys and girls during puberty and discuss what causes these changes. Watch BBC video clips of ovulation and the menstrual cycle. Discuss how hormones control the changes seen. Use a month calendar page to colour code days according to hormone levels (make a flickbook to show changes). Use a model, eg diagram, chart, animation etc, to show the names, sites of production and effects of FSH, LH, oestrogen and progesterone in the menstrual cycle. Higher Tier will require more detail. Discussion – do male and female hormone levels fluctuate and why? Live science article provides extension material for Research the effects of testosterone and oestrogen on secondary sexual characteristics in boys and girls. Useful for discussion about the reliability of research, in this case research into hormonal changes in new fathers.