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Which do flowers produce in greater numbers ovules or pollen grains?
pollen grain
Why do flowers produce so many pollen?
Flowers produce so much pollen to increase the chances of one grain managing to fertilise.
What forms a seed when an egg is joined?
a pollen grain
What does a pollen grain landing near an ovule produce?
If a pollen grain lands near an ovule, it can lead to pollination, where the pollen grain forms a pollen tube that grows towards the ovule. Once the pollen tube reaches the ovule, fertilization can occur, resulting in the formation of a seed.
What serves as a bridge between the pollen grain and the egg?
The pollen tube serves as a bridge between the pollen grain and the egg in flowering plants. Once the pollen grain lands on the stigma, it germinates and forms a pollen tube that grows down through the style towards the ovary, where it delivers the male gametes to the egg for fertilization.
Why do pollen grain only produce tubes in flowers of their species?
because they dony like other species
How does a pollen tube form?
A pollen tube forms when a pollen grain lands on the stigma of a flower and germinates. The pollen grain absorbs water and begins to grow a tube that will penetrate the style of the flower and reach the ovary. This is a crucial step in the process of fertilization in plants.
What is difference between ungerminated pollen grain and germinated pollen grain?
Ungerminated pollen grain is inactive and has not started the process of fertilization, while germinated pollen grain has started growing a pollen tube towards the ovule for fertilization. Germinated pollen grain is actively involved in the fertilization process, while ungerminated pollen grain is not.
Do Dicot have pollen grain?
yes Dicot have pollen grain and in Dicots pollen grain possess 3 germ pores
What is The transfer of pollen grain occurs in the same flower or between two flowers of the same plant called?
pollination
What grows out of the pollen grain and into the stigma then carries the pollen nucleus down to the egg?
The structure that grows out of the pollen grain and into the stigma is called the pollen tube. Once the pollen grain lands on a compatible stigma, it germinates and forms this tube, which extends down through the style to reach the ovule in the ovary. The pollen tube carries the male gamete (pollen nucleus) to the egg cell for fertilization. This process is essential for sexual reproduction in flowering plants.
When only one pollen grain is needed for fertilization?
Fertilization in flowering plants typically requires only one pollen grain to fertilize an ovule, leading to the formation of a seed. Once a pollen grain lands on a compatible stigma, it germinates and forms a pollen tube that carries sperm cells down to the ovule. If successful, one sperm cell will fuse with the egg cell, resulting in fertilization. This efficient process ensures genetic diversity while minimizing the resources needed for reproduction.
