Insect Pollination

- For the process of pollinating a flower there has to be a transfer of pollen grains from the anthers of one plant to the stigma of another. This is known as Cross Pollination.

- Pollen contains the male nuclei, and is transferred to the stigma of other plants by insects.

- Because of this it is necessary for the plant to attract insects to it. It does this by either making itself look appealing (coloured petals - insects react well to this), or smelling good. Also a value to the insect of going to the flower, which is provided using food by the nectaries. The nectaries produce fructose which the insect uses as a source of protein.