6.1 - Structure of a Flower

Flower is the most attractive and distinctive organ in the angiosperms. The beauty and scent of the flowers not only attract animals and insects for pollination, flower also helps to maintain survival of the species. Flower has both the male reproductive organs and the female reproductive organs. The other structures that provide support to the flower include peduncles, sepals and petals.

Figure 1 - The longitudinal section of a flower. Stamen is the male reproductive organ whereas the carpel is the female reproductive organ.

Comparison between Male and Female Structures in a Flower

• Similarities

  • Both produce gametes
  • Both are situated in the flower

• Differences

  • Male structure

    • Structure: Filament and anther
    • Site: Project out from the base of the ovary
    • Reproductive organ: Stamen
    • Function: Produces pollen grains

  • Female structure

    • Structure: Stigma, style and ovary
    • Site: Located in the middle part of the flower
    • Reproductive organ: Carpel
    • Function: Produces embryo sac