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During pollination, pollen grains attach primarily to the stigma, which is the receptive part of a flower's female reproductive organ (the pistil). The stigma is often sticky or has specialized structures that facilitate the adhesion of pollen. Once attached, pollen grains germinate and grow a pollen tube down the style to reach the ovary, where fertilization occurs. This process is crucial for the reproduction of flowering plants.
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What structure do pollen attach during pollination?
During pollination, pollen grains attach to the stigma, which is the upper part of the pistil in flowering plants. The stigma is often sticky, allowing it to capture and hold pollen from visiting pollinators or the wind. Once the pollen adheres to the stigma, it can germinate and grow a pollen tube down the style towards the ovary, facilitating fertilization.
Does pollination occurs when pollen grains land on the sticky surface of the anther?
No, pollination occurs when pollen grains land on the sticky surface of the stigma.
What part of the plant receive pollen?
stigma
What happens once the pollen lands on the stigma?
Pollination
Does pollen tube grow before or after pollination occurs?
Pollen tube growth occurs after pollination. Pollen grains are deposited on the stigma during pollination, which then germinate to produce pollen tubes. These tubes grow down through the style to reach the ovule for fertilization.
Which structure do pollen grains attach during pollination?
Pollen grains attach to the stigma of a flower's pistil during pollination. The stigma is the receptive part of the pistil where the pollen lands and germinates to form a pollen tube for fertilization to occur.
What structure do pollen attach during pollination?
During pollination, pollen grains attach to the stigma, which is the upper part of the pistil in flowering plants. The stigma is often sticky, allowing it to capture and hold pollen from visiting pollinators or the wind. Once the pollen adheres to the stigma, it can germinate and grow a pollen tube down the style towards the ovary, facilitating fertilization.
Pollen grains move from a flower's stamen to it's pistil during what?
During self pollination, pollen grains move from the stamen of a flower to its pistil. Cross pollination involves flowers from different plants.
What is Different between self pollination and cross pollination?
In cross pollination there is wastage of pollen grains , but in self pollination there is no wastage of pollen grains.
Are pollen grains formed within the stigma?
No, pollen grains are not formed within the stigma. Pollen grains are formed in the anthers of a flower's stamen. The stigma is part of the female reproductive structure of a flower, where pollen grains land and germinate to fertilize the ovules.
What does the stigma do in plant?
The stigma is the part of the flower where the pollen grains stick during pollination
Does pollination occurs when pollen grains land on the sticky surface of the anther?
No, pollination occurs when pollen grains land on the sticky surface of the stigma.
What part of the plant receive pollen?
stigma
What happens once the pollen lands on the stigma?
Pollination
Where do pollen grains go?
Out of hundreds and thousands of pollen grains produced by each flower a few land on the stigma during pollination and others just wither away.
Does pollen tube grow before or after pollination occurs?
Pollen tube growth occurs after pollination. Pollen grains are deposited on the stigma during pollination, which then germinate to produce pollen tubes. These tubes grow down through the style to reach the ovule for fertilization.
What is the difference between self pollination and cross pollination'?
In cross pollination there is wastage of pollen grains , but in self pollination there is no wastage of pollen grains.
