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In what structure do the pollen grains come in contact with the ovule?
Wiki User
∙ 10y ago
amswer stigma
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoThe stigma.
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What is the function of the sperm nucleus in plants?
the sperm nucleus is found in pollen grains and directs the growth of the pollen tube to the ovule in the ovary, it then degenerates
What forms when stigma and pollen develop?
when the pollen comes in contact with the stigma.. the pollen tube is formed. that then goes into the ovary and fertilizes with the ovule.
What happens when the pollen grain falls on the stigma?
when pollen grains falls on stigma, it creates a pollen tube which dilivers pollen grain and fuses with female gametes present in the ovule
Were is pollen made?
Gymnosperms are heterosporous, producing microspores that develop into pollen grains and megaspores that are retained in an ovule. After fertilization (joining of the micro- and megaspore), the resulting embryo, along with other cells comprising the ovule, develops into a seed. The seed is a sporophyte resting stage.
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.
How can a plant become a fruit without the anther?
Other plant from the surroundings that has anther (produce the pollen grains) will fertilise the ovule. when the pollen grains landed on the stigma, the ovule is then fertilise.
After pollination the pollen grains begin to?
Pollen grains and on stigma of a compatible plant; the pollen grains germinate and grow down the style and into the ovary. Once in the ovary a sperm nucleus from the pollen grain fuses with the ovule (and forms into a zygote or embryo). The pollen tube then degenrates and the ovule forms into a seed.
What does the style in a plant do?
The style transports pollen grains into the, ovary then into the ovule.
What does style do in a plant?
The style transports pollen grains into the, ovary then into the ovule.
What is develop when pollen grains fall down to the pollen tube to join the ovule inside the ovary?
fruit
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.
The structure that grows from a pollen grain to an ovule and enables a sperm to pass directly to an egg?
pollen tube
What is transferring pollen grains from another to the stigma of a flower?
when pollen grain are transferred from the stigma the ovule of the flower , whats takes place
What is the function of the sperm nucleus in plants?
the sperm nucleus is found in pollen grains and directs the growth of the pollen tube to the ovule in the ovary, it then degenerates
What is the structure that develops into a pollen grain?
First pollen falls from a male cone onto a female cone. In time a sperm cell and an egg cell join together in an ovule on the female cone
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 is needed to be pollinated and fertilized before they produce seeds?
Ovule needs to be fertilised with sperms from pollen grains to produce seeds
