Reproduction

• Sepal


  Protect the flower bud
• Petal

  • Brightly coloured and scented
  • May have nectarines, which are all used to attract insects
  • In wind-pollinated flowers, petals are tiny and used for pushing the bracts (leaf-like structures) apart from exposing stamens and stigma
• Anther


  Has pollen sacs with pollen grains that contain the male nucleus (male gamete)
• Stigma


  Platform on which pollen grains land
• Ovary


  Hollow chamber, ovules grow from the walls
• Self Pollination


  The transfer of pollen grains from the anther of a flower to the stigma of the same flower or a different flower on the same plant
• Pollination


  The transfer of pollen grains from the male part of the plant (anther of stamen) to the female part of the plant (stigma)
• Testes


  • Have many coiled tubes that produce sperm
  • Cells between tubes produce testosterone
• Scrotum


  Holds testicles
• Sperm duct


  Carries sperm from testicles to urethra
• Prostate gland


  Makes seminal fluid
• Urethra


  Carries semen from the sperm duct to the tip of the penis
• Penis


  Male sex organ used to transfer semen to the female
• Oestrogen

  Secreted by the ovaries. It stops FSH from being produced - so that only one egg matures in a cycle, and it stimulates the pituitary gland to release the hormone LH.
• Progesterone


  Secreted by the placenta during pregnancy, while during the menstrual cycle is by the ovaries. Its primary function is maintaining the uterus lining during the middle of the menstrual cycle and pregnancy.
• FSH

  Secreted by the pituitary gland. It causes an egg to mature in an ovary and stimulates ovaries to release oestrogen hormone.
• LH


  Secreted by the pituitary gland and causes mature eggs to be released from the ovary.