0
because they dony like other species
What else can I help you with?
What is the structure that allows sperm cells to move through the style of a flower?
The structure that allows sperm cells to move through the style of a flower is the pollen tube. Pollen tubes carry the sperm cells from the pollen grains on the stigma, through the style, and into the ovary where fertilization can occur. This process is crucial for sexual reproduction in plants.
What is the function of the style in the flower?
The style in a flower is part of the female reproductive structure that connects the ovary to the stigma, allowing pollen to reach the ovules for fertilization. It plays a crucial role in the pollination process by providing a pathway for pollen tubes to grow and facilitate fertilization.
Grows from the pollen grain to the ovule?
Pollen tubes grow from the pollen grains to the ovules. Lipids on the surface of the stigma stimulate growth of the pollen tubes. Self sterile plants prevent themselves from growing seeds by not creating these lipids.
How does pollen that fertilizes the egg reach the ovule?
Some of the pollen grains carried by wind,insects,birds or bats may reach a carpel and stick to the ripe stigma.Each pollen grain produces a tiny tube which grows down to the style,into the ovary and towards the ovules or egg cells.when one of the tubes reaches an ovule,it bursts open.A male nucleus from the pollen grain then moves down the pollen tube to join with the nucleus of the female sex cell,the ovule.when the nuclei of the pollen grains and ovules have joined together, the ovules are said to be fertilized.
Which of the substance sucrose or water cause the better formation of pollen tube?
Sucrose is a better stimulant for pollen tube growth compared to water. Sucrose provides the energy and nutrients required for the growth and elongation of pollen tubes, whereas water alone does not provide the necessary nutrients for optimal pollen tube development.
Why do pollen grain only produce tubes in flowers of their species?
because they dony like other species
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 part of the flowers do pollen tubes start to develop?
On the stigma of the carpel
How do two plants fertilize?
By sending their male gametes to the female gametes through their pollen tubes after germination of pollen grains.
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.
Why is there a need for pollen tubes?
Pollen tubes are necessary for the transportation of sperm cells to the ovule in plants for fertilization to occur. They provide a pathway through which the sperm cells can travel to reach the egg cell, enabling the process of sexual reproduction in plants.
Sticky secretion on the scales of seed cones traps?
A sticky secretion on the scales of seed cones traps pollen grains. Structure is produced by a pollen grain that lands near an ovule is pollen tubes.
How is the stigma of a plant adapted to trap pollen grains and provide a place for them to grow?
The stigma is adapted to trap pollen grains through its sticky surface or specialized structures that can capture and hold the pollen grains. Once trapped, the stigma provides a suitable environment for the pollen grains to germinate and grow pollen tubes, which then transport the male gametes to the ovary for fertilization to occur. This process increases the likelihood of successful pollination and seed production in plants.
What is the job of the pistil in flowers?
The pistil is situated at a flower's center. It is a flower's female reproductive part that consists of the ovary at its base, style, and stigma. The role of the stigma, which is located at the top of the pistil, is to collect pollen. A pollen tube, which grows down through the style, connects the stigma to the ovary. The ovary contains ovules that are fertilized by the pollen.
What is the function of the pollen tubes?
it sucks
What is the structure that allows sperm cells to move through the style of a flower?
The structure that allows sperm cells to move through the style of a flower is the pollen tube. Pollen tubes carry the sperm cells from the pollen grains on the stigma, through the style, and into the ovary where fertilization can occur. This process is crucial for sexual reproduction in plants.
Why do flowers develope shapes built around deep tubes?
So that pollinators with long mouth-parts can collect nectar from the flower and also pick up pollen.
