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After pollen grows a tube down the style?
Pollen grows a tube that travels down to the flowers ovary. From there, the nucleus of the pollen grains passes through the pollen tube to join the nucleus of the ovule to fertilize.
How does pollen make it from the stigma down to the ovary?
It makes a seed Edited answer: In nature, pollen does not get into ovary, rather it land on the stigma and their it allowed to germinate to send pollen tube to the ovary only if it is compatible. Otherwise it is rejected by the stigmatic cells and withers away.
How does the pollen grains tube reach the ovary?
Pollen tubes are extensions of pollen grains that grow and elongate to penetrate the ovary. They are guided by chemical signals released by the ovary, which direct the path of the pollen tube towards the ovule where fertilization can occur.
What moves down the pollen tube into the ovary?
Pollen
How long would it take a pollen tube to reach a avule in the ovary?
The time it takes for a pollen tube to reach an ovule in the ovary can vary widely depending on the plant species and environmental conditions. Generally, it can take anywhere from a few hours to several days for the pollen tube to navigate through the style and reach the ovule. Factors such as the type of flower, moisture levels, and temperature can all influence this process.
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.
A pollen grain forms a tube leading to the flower's what?
Pollen grows a tube that travels down to the flowers ovary. From there, the nucleus of the pollen grains passes through the pollen tube to join the nucleus of the ovule to fertilize.
What is the tube in the stigma called?
The tube in the stigma is called the style. It serves as the bridge between the stigma and the ovary, allowing for the transfer of pollen for fertilization.
What takes place when pollen lands on the stigma?
When pollen lands on the stigma of a flower, it germinates and grows a pollen tube through the style to reach the ovary. This process allows for fertilization to occur, where the sperm travels down the pollen tube to fertilize the egg cell in the ovule. This ultimately leads to the formation of seeds within the ovary.
How does the pollen tube nucleus function in fertilization?
The pollen tube nucleus directs the growth of the pollen tube down through the pistil to the ovary
Where the pollen tube grow to or through?
The pollen tube grows out of or through the pollen grain.
Can the flower bears food if the stigma is cut off?
No, because pollen cannot reach the ovary. Stigma is necessary for trapping pollen and for rehydration of pollen tube to grow. So no fertilization occurs.
