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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.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoThe pollen after landing on the stigma of the pistil germinates to sendout pollen tube.
The pollen tube grows through the style to reach the ovule in the ovary and ultimately discharges the male gametes in the embryo sac to facilitate fertilization.
Wiki User
∙ 12y agothe pollen grain makes a pollen tube through the style right into the ovary. the pollen grain enters the egg and fertilizes it.
Wiki User
∙ 11y agoThe wind comes along and takes the pollen of off the male flower and takes it to the female flower and releases into a stigma
Wiki User
∙ 13y agoThey travel down the plant pollen tube.
Wiki User
∙ 8y agoThe pistils
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How do the sperm nuclei in a pollen grain reach the egg nucleus in an ovule?
When they land on the style they begin to bore their way through the stigma all the way to the ovule. Through the tube made by the tube nucleus of the pollen grain: each pollen grain has two nuclei, one called generative nucleus which combines with the nuclei of the ovule, and the other called tube nucleus tube nucleus which forms a tube that penetrates the stigma till it reaches ovule then it degenerates.
What is the joining of the male nucleus from the pollen grain with the egg cell in the ovule called?
Its fertilization
What process happens when pollen falls on a flowers pistil?
Pollination brings together the gametes of a flower and it occurs when a pollen grain of the right kind lands on the stigma of the pistil. Each pollen forms a tube that grows down through the pistil and reaches the ovule in the ovary. One of the nuclei in the pollen tube unites with the egg nucleus in the ovule to form a zygote. The other sperm nucleus combines with another bigger nucleus in the ovule which develops into the endosperm.
How do you think pollen grains reach the pistil?
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.
Does the pollen come from a male or female part of the flower?
The 'pistil' is a female part of a flower. However flowers usually have both male and female parts, it is unusual for a plant to be just male or female (although there are examples such as 'holly' and 'cannabis').
What transfer pollen from stamen to ovules?
A pollen tube grows from the pollen grain down through the style. The pollen tube enters the ovary and reaches an olvule. The sperm then travels down the pollen tube and fertilizes the egg in the ovule. So a pollen tube.
What is the role of pollen tube in seeded plant?
The pollen tube serves as a conduit for sperm cells to travel from the pollen grain to the ovule for fertilization in seeded plants. It extends down the style of the pistil to reach the ovule and deliver the sperm cells. Once the sperm cells reach the ovule, they fertilize the egg cell, leading to seed formation.
Where does sexual reproduction occur?
Overall- Pollination; pollen carried from anther to stigma; sperm nuclei germinates out of pollen grain, goes down style into ovule and fertilizes egg nuclei (double fertilization occurs), Seed develops from ovule and fruit develops from ovary. Next seed is dispersed.
Where does sexual reproduction occur in?
Overall- Pollination; pollen carried from anther to stigma; sperm nuclei germinates out of pollen grain, goes down style into ovule and fertilizes egg nuclei (double fertilization occurs), Seed develops from ovule and fruit develops from ovary. Next seed is dispersed.
Where does sexual reproduction occur in plant?
Overall- Pollination; pollen carried from anther to stigma; sperm nuclei germinates out of pollen grain, goes down style into ovule and fertilizes egg nuclei (double fertilization occurs), Seed develops from ovule and fruit develops from ovary. Next seed is dispersed.
The structure that grows from a pollen grain to an ovule and enables a sperm to pass directly to an egg?
pollen tube
What happens when two pollen grains land on the same stigma and after the first grain fertilises the ovule?
When a pollen grain lands on stigma, pollination occurs. The pollen grain germinates and the pollen tube grows through the style. The sperm nucleus travels through the tube (generated by the tube nucleus) and fuses with an ovule which then develops into an embryo (or zygote)
How does fertilization in plants?
the pollen grains after landing on the stigma germinate to send out pollen tubes through which the male gametes reach near the egg cell of embryo sac in the ovule to fuse with. this fusion of male and female gametes (egg cell) is called fertilization.
How do the sperms nuclei in a pollen grain reach the egg nucleus in an ovule?
When they land on the style they begin to bore their way through the stigma all the way to the ovule. Through the tube made by the tube nucleus of the pollen grain: each pollen grain has two nuclei, one called generative nucleus which combines with the nuclei of the ovule, and the other called tube nucleus tube nucleus which forms a tube that penetrates the stigma till it reaches ovule then it degenerates.
How do the sperm nuclei in a pollen grain reach the egg nucleus in an ovule?
When they land on the style they begin to bore their way through the stigma all the way to the ovule. Through the tube made by the tube nucleus of the pollen grain: each pollen grain has two nuclei, one called generative nucleus which combines with the nuclei of the ovule, and the other called tube nucleus tube nucleus which forms a tube that penetrates the stigma till it reaches ovule then it degenerates.
What occurs in plants when pollen lands on and fertilizes the egg?
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What structure transports sperm in the ovule in flowering plants?
The pollen tube is a structure designed to help a particle of pollen, the male side of the plant fertilization process, to access the egg cell in the female part of the plant. The egg cells are typically protected by cell walls and shells designed to keep them in place and protect them from outside elements. Pollen particles create pollen tubes to reach through these walls and access the egg cell.
