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Insect Pollination

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A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.

Insect Pollination
During plant reproduction, pollen grains need to move from the anther of one flower to the stigma of another flower. This is called pollination. Insects and wind can pollinate flowers. Insect-pollinated flowers are different in structure from wind-pollinated flowers.

A pollen grain starts to grow if it lands on the stigma of a flower of the correct species. A pollen tube grows through the tissues of the flower until it reaches an ovule inside the ovary. The nucleus of the pollen grain then passes along the pollen tube and joins with the nucleus of the ovule. This process is called fertilisation.



Reproduction - pollen tubes in plants
Structure of an insect pollinated flower

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