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Pollen grains reach the pistil through pollination. The pollen grains are placed on the stigma of the carpal, and it transfers by wind, insects, built in mechanical discharge, and men. When the pollen lands on the stigma, it starts a series of chemical reactions that allow the pollen grain to produce a structure called the pollen tube. At the same time, the generative nucleus divides and produces two sperm nuclei. The pollen grain with the pollen tube and three nuclei is a mature gametophyte. The pollen tube works its way through the style of the carpal and touches the micropyte of the ovule. The sperm nuclei enter the embryo sac and fertilizes the egg and two polar nuclei, referred to as double fertilization. The fertilized egg develops into the immature seed plant, and the central cell develops into the endosperm, or food storage ares, of the seed.

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Guido Larkin

Lvl 13
3y ago

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Related Questions

How do think pollen grains reach the pistil?

Either randomly on the wind, or when a flying insect covered in pollen brushes against the pistil as it flies from flower to flower.


Where do pollen grains land on the pistil?

the style


Does it go from stamen to the pistil or pistil to the stamen?

Pollination usually involves pollen moving from the stamen to the pistil, where the pollen grains land on the stigma and travel down the style to reach the ovary. This process enables fertilization to occur and the development of seeds.


How do you thick pollen grains each pistil?

aaa


The part of the pistil where pollen grains land is the?

The stigma


What is top of the pistil that catches the pollen grains.?

The stigma


What is the top of the pistil that catches pollen grains?

The stigma


Which part of the pistil is sticky and attracts pollen grains?

The stigma is the part of the pistil that is sticky and attracts pollen grains in order to facilitate pollination.


How do you think pollen grain reach pistil?

The pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.


How do pollen grains reach the pistil?

The pollen grain reach the pistil either by self-pollination or by cross pollination by pollinators.


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.


Which part of the pistil is stickyand attracts pollen grains?

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