Thursday 7 April 2011

3.3b Wind Pollination



3.3b Wind pollination - Describe the structure of a wind pollinated flower and explain how it is adapted for pollination
·         Wind pollination is the transfer from the anther to the stigma through the air
·         Pollen grain adaptation
1) Lightweight
2) Wing feature to easily allow them to move through the air
3) Anther- hang clear from any large structure, therefore it can be exposed to wind
4) Stigma- large surface area, featherlike structure-exposed to wind in order to catch pollen grains so that the anther can be caught on to it
·         Since the wind is pollinating the plant, no insects need to be attracted to the flower therefore the flower does not need any:
      -colour
      -scent
      -nectaries
      -production of sugar

1 comment:

  1. we should be able to add some real images from todays lesson

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