Plant Reproduction

• what is pollination?


  the transfer of pollen grains from anthers to stigmas
• what is asexual reproduction?


  production of genetically identical offspring from one parent only
• what are three examples of asexual reproduction?


  • plants growing from potato tuber
  • new plants growing from spider plant
  • bacterial cell division
• what is an advantage of asexual reproduction in plants?


  • requires one parent only to reproduce offspring quickly
• what is a disadvantage of asexual reproduction in plants?


  cannot produce genetically different offspring
• what is fertilisation?


  the fusion of nuclei of two gametes
• what is the function of sepals?


  • protects the developing flowers
• what is the function of filament?


  supports the anther in the stamen
• what is in the stamen?


  anther and filament
• what do anthers contain?


  pollen grains which are male gametes
• what are the female parts of the flower?

  the parts inside (carpel)

  • S TIGMA
  • S TYLE
  • O VARY
  • O VULE
• what are the male parts of the flower?

  outside the plant (stamen)

  • anther
  • filament
• self pollination?


  transfer of pollen grains from anther to stigma of same flower
• cross pollination?


  transfer of pollen grains from anther to stigma of flower on dif plant (but same species)
• give features of an insect pollinated flower


  • colourful petals
  • scented
  • sticky pollen grains to stick to insects
  • lots of pollen
• give features of a wind pollinated flower?


  • small petals
  • unscented
  • smooth and light pollen
  • VERY LARGE quantities of pollen made as a lot of them will be swept away by wind
• what are the requirements for germination?


  warm

  water

  oxygen