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In flowering plants, after pollination, a pollen grain germinates on the stigma, forming a pollen tube. This tube grows down through the style toward the ovule, guided by chemical signals. As the pollen tube extends, it transports sperm cells from the pollen grain to the ovule, where fertilization occurs, leading to the development of seeds. The successful delivery of sperm to the ovule is crucial for reproduction in flowering plants.
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What travels down the pollen tube and fertilizes?
The pollen tube carries the male gametes (sperm) from the pollen grain to the egg cell in the ovule. Once the pollen tube reaches the ovule, the sperm fertilizes the egg cell, resulting in the formation of a seed.
What two things are needed to make a seed?
To make a seed, you need pollen (male reproductive cells) and an ovule (female reproductive cells). Pollen carries the male genetic material to the ovule for fertilization, resulting in the formation of a seed.
What is the function of the pollen grains in the flower?
It takes the sperm into the male reproductive organ and then new flowers grow.
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 is pollen tube germination?
Pollen tube germination is the process by which a pollen grain, upon landing on a compatible stigma, develops a tube that extends down the style toward the ovule in the ovary. This tube carries sperm cells from the pollen grain to fertilize the ovule, leading to seed formation. The germination process involves the hydration of the pollen grain and the growth of the tube, which is guided by chemical signals from the ovule. Successful germination is crucial for plant reproduction.
What travels down the pollen tube and fertilizes?
The pollen tube carries the male gametes (sperm) from the pollen grain to the egg cell in the ovule. Once the pollen tube reaches the ovule, the sperm fertilizes the egg cell, resulting in the formation of a seed.
What two things are needed to make a seed?
To make a seed, you need pollen (male reproductive cells) and an ovule (female reproductive cells). Pollen carries the male genetic material to the ovule for fertilization, resulting in the formation of a seed.
What is the function of the pollen grains in the flower?
It takes the sperm into the male reproductive organ and then new flowers grow.
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.
Describe where pollination and fertilization occur?
Pollination occurs when pollen is transferred from the anther to the stigma of a flower. Fertilization occurs when the sperm cell from the pollen joins with the egg cell in the ovule, usually located in the ovary of the flower.
What grows from the pollen grain go the ovule?
The pollen grain produces a pollen tube that grows towards the ovule in order to deliver the male gametes for fertilization. Once the pollen tube reaches the ovule, the male gametes are released to fertilize the female gametes inside the ovule, leading to the formation of seeds.
The pollen tube fertilizes the?
ovule
Where is pollen form?
In the Anther
What name is used when the pollen joins the ovule?
Fertilization occurs when pollen joins with the ovule, resulting in the formation of a fertilized egg or zygote.
What is the fusion of pollen and ovule called?
The fusion of pollen and ovule is called fertilization. This process involves the union of the sperm cell from the pollen with the egg cell in the ovule, resulting in the formation of a zygote, which eventually develops into a seed.
When pollen connects with an ovule in the ovary?
Esphogatioues
What does pollen join with to make seeds?
pollen joins an ovule to make seeds
