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pollen can reach the other flower during cross pollination
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∙ 11y ago
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Ways pollen can move?
There are three common kinds of pollination: self pollination, wind pollination, and insect pollination. •Self pollination is when the pollen in the stamen (male part of the plant) drops into an ovule (egg) in the ovary of the stigma (female part) of the same plant. This is why it is called self pollination. • Wind pollination occurs in plants that are all-male (its flowers only containing stamen) and all-female (its flowers only containing the stigma). The stamen develops millions of pollen grains in the spring, as the chance of the pollen reaching an all-female plant is very little, and releases it in the summer. The few pollen grains that reach an all-female plant will be likely to reach an ovule in the stigma and pollinate the ovule. • Insect pollination is used by a lot of plants. This method of reproduction is when an insect such as a bee, butterfly, moth, or sometimes a bat, reaches a flower and sucks out the nectar in the flower. As they do this, the pollen gets stuck in their legs, and when they suck the nectar from the flower of another plant, the pollen gets onto the flower and into the stigma. If the pollen from a different type of plant is put into a stigma of a plant, pollination won't occur, so God has designed the bees of each hive to suck nectar from one kind of flower each day, so that the chance of pollination will be more.
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.
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.
Does the anther hold pollen?
the anthers have to reach the stigma to make seeds.
Why is it important to elevate the anthers?
The anther is important in a flower because that is where the pollen grains are produced and kept, and pollen is vital for redproduction. This is very important for reproduction and controlling reproduction.
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.
How does the pollen reach the stigma?
some pollen grains reach to stigma by wind and some are carried by animals like rabbits and insects like butterfly, bee etc.
What happens when pollen of a rose plant reaches the stigma of a carnation flower?
it starts to germinate but is either unable to grow and reach the female gameta or is unable to fertilize it
How close to the egg can the pollen grain get?
when a pollen grain lands on the stigma it creates a pollen tube that goes down to the egg where sperm fuzes with the egg.
How does the pollen grains tube reach the ovary?
it is either get blown by the wind to another flower or carried by an insect.
During sexual reproduction in a flowering plant a pollen tube grows down through the?
The pollen tube grows through the stigma and style in the pistil, to reach the ovaries where the pollen may fertilize an egg.
Why does the insect reach down into the flower?
The insect reaches down into the flower to take a drink of nectar. Then it leaves the flower but in doing so, brushes against the pollen. When the insect travels to another flower, the pollen gets deposited there which results in cross-pollination.
How do bees pollinate flowers?
Bees are attracted to flowers by their bright colours and their desire to collect nectar. Nectar tends to be found close to the base of the petals and as the bee attempts to reach it the bee brushes against the male stamens of the flower, which deposit pollen on to its fur. When the bee flies to another flower the same process occurs and some of the pollen which was already present on its fur may brush against the female parts of this flower and then serve to fertilise it.
Ways pollen can move?
There are three common kinds of pollination: self pollination, wind pollination, and insect pollination. •Self pollination is when the pollen in the stamen (male part of the plant) drops into an ovule (egg) in the ovary of the stigma (female part) of the same plant. This is why it is called self pollination. • Wind pollination occurs in plants that are all-male (its flowers only containing stamen) and all-female (its flowers only containing the stigma). The stamen develops millions of pollen grains in the spring, as the chance of the pollen reaching an all-female plant is very little, and releases it in the summer. The few pollen grains that reach an all-female plant will be likely to reach an ovule in the stigma and pollinate the ovule. • Insect pollination is used by a lot of plants. This method of reproduction is when an insect such as a bee, butterfly, moth, or sometimes a bat, reaches a flower and sucks out the nectar in the flower. As they do this, the pollen gets stuck in their legs, and when they suck the nectar from the flower of another plant, the pollen gets onto the flower and into the stigma. If the pollen from a different type of plant is put into a stigma of a plant, pollination won't occur, so God has designed the bees of each hive to suck nectar from one kind of flower each day, so that the chance of pollination will be more.
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.
How does the pollen tube reach the ovary?
one an insect or animals spreads it,it goes down the STIGMA and into the OVARY then into the OVULES
How do think pollen grains reach the pistil?
Either randomly on the wind, or when a flying insect covered in pollen brushes against the pistil as it flies from flower to flower.
