skip to main content
Making and Dispersing Seed.

The flower is the reproductive part of the plant. It makes seeds after pollination and fertilization have taken place.

Brightly coloured flowers attract insects; these get sweet sticky nectar from the plant and as they do so they carry pollen for the plant. When the pollen, made in the male part of a flower, the stamen, lands on the female stigma, pollination has taken place. The pollen grain then grows down to the ovary where it fertilizes the egg cell in the ovule to make a seed.

Seeds can be dispersed in a variety of ways, some are blown by the wind, some fired out of a seed pod, some stick to the fur of animals, others are eaten and pass through an animal before being dropped somewhere else. The seeds are adapted to the way they are dispersed, for example "helicopters" are carried by the wind.

Brightly coloured fruits are eaten by animals and the seeds are dropped far away from the parent plant.

Next time you eat a piece of fruit, cut it in half and look at the way the seeds are arranged inside.

Go to reference 2 for some examples of seed dispersal.

Links:

Reference 1 BBC Bitesize animation of pollination and fertilization.

Animation of a flower being pollinated and fertilized.

Reference 2 Pollination

How plants found near Framlingham are pollinated.

Reference 3 Seed dispersal

Some examples of how different seeds are dispersed by the children of Sir Robert Hitcham's school in Framlingham.

[list] list  [edit] edit  [my notes] my notes  [make a note] make a note  [add link] add link 
 
Exercises

Life Cycle of a Plant

Parts of a Plant

Germination and Growth

Making Food

Making and Dispersing Seed.

Objectives  

   

Contact customer support: webform / email | ©2000-2008 digitalbrain | company information | terms & conditions
Digitalbrain requires modern browsers with JavaScript enabled. Some areas are enhanced with Macromedia Flash 7
v2.0 build.94 served by w007.dbplc.com