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HomeworkScienceBiology → Sexual Reproduction in Plants

Reproduction is the process by which an organism produces new individuals (offspring). This involves two individuals (parents) male and female. The parents have reproductive organs which produce the special sex cells called gametes.

The male gamete (pollen) fuses together with the female gamete (ovule) to form a fertilised egg (zygote). The zygote will grow into an embryo after much cell division and then develop into a new individual.

A diagram of a plant.

A fully labelled plant
Click to enlarge!

For lowering plants to reproduce sexually, the pollen grains must be transfered from the anther of one plant to the stigma of another. This process is called pollination. There are two types of pollination: insect and wind.

Insect Pollination: Insects are lured onto plants by pretty colours and sweet scents. The pollen on the anthers of the plant they land on sticks to the body of the insect. The insect then lands on another plant completing the transfer of pollen.

Wind Pollination: In some plants pollen is blown from one flower to another eg. hazel and many grasses. Large anthers on long filaments hang outside the flowers, the pollen is blown by the wind , and sticks to feathery stigmas.

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