Pollinization is the transference of pollen grains to the stigma. Fertilization occurs when pollen grains move to the ovary and gametes meet. Option D. 2,3,4,1
What is pollinization?
Pollinization is the pollen transference from the masculine organs to the feminine organs of the flower. It might involve the same flower or different flowers, the same plant or different plants.
What are the Feminine reproductive structures?
- The central structure is known as a carpel, also recognized as the pistil.
- The base of the carpel forms the ovary, in which the eggs are produced and where the zygote develops.
- The opposite extreme of the carpel is the stigma, in the superior part.
- The stigma is a sticky surface where the pollen grains get attached.
- The style is the filament structure that connects the ovary and the stigma.
What are the Masculine reproductive structures?
- The pollen grains, or male séx cells, are produced in the stamens.
- The stamen has an anther where the pollen is produced, and a filament that provides support.
What is fertilization?
Fertilization is the gamete fusion, which involves the mature germinated pollen grain and the ovule.
During fertilization
1) The mature pollen grains are driven to the stigma of the same flower or other flowers of the species, where they stick.
2) Once in the stigma, the pollen grain germinates.
3) A thin structure named pollinic tube forms. It goes from the stigma along the style and ends in the flower ovary.
4) The pollen grains move along the tube forward to the ovary, where they meet the egg and fertilize.
5) Once in the ovary, the pollen grains get in touch with the ovule. They have double fertilization.
6) The zygote develops in the ovary.
You can learn more about pollinization and fertilization at
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According to this framework, the correct option is d) 2, 3, 4, 1
