0
How does being small and light help a pollen grain in pollination?
Wiki User
∙ 12y ago
look in your text book and learn it. Don't be lazy or you won't get far in life.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How does the structure of a flower help in pollination?
Flowers are really there to reproduce. Firstly is cross pollination, to do this a flower needs to grab a bees/butterflies/birds attention. First of all, colour. Bees can only see ultraviolet light, so flowers use this to their advantage, by colouring their flower in ultraviolet, this makes them stand out. Secondly the flowers shape, the petals are designed to guide the pollinator to the pollen. Sometimes pollination is not done by animals, self pollination is also common, a flower simply reproduces by itself, it does this by producing pollen and using it, however this must be triggered by movement, this is usually done by wind so the flower would need to be light and big.
What is the advantage of smooth and light pollen?
advantages of smooth and light pollen
How are petals adapted to wind pollination?
There are certain adaptations for wind pollinated flowers..one, is being light and has plenty of hairy structures to trap pollen or being carried by air easily. two, the morphology and phyllotaxy of such flower is arranged in a manner at which wind can blow it easily and its reproductive activities perfectly suits the external environment.
How is pollen cell adaped for its function?
find it out on google u silly peopleTHIS PERSON HAS BEEN REPORTED.
How are spores and pollen suited for dispersal?
Spores and pollen are very light in weight and are always being scattered by the air easily on the land and here they come in contact with the other dipersal agents and carried away from one place to another place.
How the bees catches some of the pollen grains and drops them on another flower and how Pollination occurs?
The rear legs of the bees are hairy. When they enter a flower pollen grain being light attaches itself on the hairy legs. It is transferred to another flower when theres some frequent movement of the bee,either by flaping their wings or walkin in out the flower. This inturn results to cross poliination.
How stigma helps in the wind pollination?
Depending on the type of pollinators, the pollen grains may be sticky or light. Exine present on the pollen grains as the outermost covering layer is contributed by the tapetum cells. Reaching on the stigma after pollination, the stigmatic cells interact with the material of exine to determine the compatibility of the pollen to allow its germination for fertilization.
In Gymnosperms Male cones usually occur on higher branches and farther from the trunk than the female cones Why would this be?
When pollen from the male cones is released it either falls to the ground by gravity or is dispersed by wind or light breezes. Having the male cone above the female ensures that some pollen will drop onto the female cone via gravity; if the female were above the male no pollen would be able to reach the cone - more a mechanism to ensure self pollination if cross pollination fails. By having the male cones at the our edge of the tree canopy it also improves the pollens chance of being lifted by wind and deposited on a nearby tree (for cross pollination)
What is the function of pollen?
Pollen is the plants mechanism of transferring haploid (n) male genetic material (male gametophytes) from the anther of one flower to the stigma of another (cross-pollination) or from the anther of one flower to the stigma of the same flower (self-pollination).The pollen grain is hard and encapsulates the genetic materials (of one parent) with in, in very much the same way that a seed contains the genetic material of both parents.Pollen is small (sometimes microscopic), light and can travel far by wind or attached to insects (bees, moths, butterflies).In angiosperms pollen is produced in the anther of the flowers, in gymnosperms it is produced in the male cones of the plant.When the pollen grain lands on the stigma of suitable flower (very closely related species or same species) the pollen grain germinates; a pollen tube grows down the style and into the ovary (controlled by the generative and tube nucleus - which were contained in the pollen grain) of the flower, here it releases two sperm nuclei which fuse with the haploid (n) nucleus of the ovule to form a zygote.Pollen is made in the male part of the flower (anther) and is full of genetic material. When the pollen and the ova (egg) are joined the DNA from the pollen enters the ova and joins with its DNA. This is fertilisation and the fertilised ova grows into a seed. (pollen has a similar job to do for plants that sperm does for animals).
How does the structure of a flower help in pollination?
Flowers are really there to reproduce. Firstly is cross pollination, to do this a flower needs to grab a bees/butterflies/birds attention. First of all, colour. Bees can only see ultraviolet light, so flowers use this to their advantage, by colouring their flower in ultraviolet, this makes them stand out. Secondly the flowers shape, the petals are designed to guide the pollinator to the pollen. Sometimes pollination is not done by animals, self pollination is also common, a flower simply reproduces by itself, it does this by producing pollen and using it, however this must be triggered by movement, this is usually done by wind so the flower would need to be light and big.
How the location of male and female cones in Pinus can ensure success of pollination?
The location of male and female cones in Pinus helps ensure the success of pollination by minimizing self-pollination and maximizing cross-pollination. Male cones produce pollen that is wind-dispersed and can travel long distances, increasing the chance of reaching female cones on other individuals. Female cones are typically situated higher up on the tree, reducing the likelihood of being pollinated by nearby males of the same tree. This separation helps promote genetic diversity and increase the chances of successful fertilization.
What is the advantage of smooth and light pollen?
advantages of smooth and light pollen
How do wind pollination occurs?
On maturity of pollen grains , the anther lobes burst open and the pollen grains released in large amonut are carried by wind to several meters away to settle on feathery stigma as in case of plants of grass family.
What is the different in pollen at wind and insect pollination?
Insect pollinated is attractive and colourful, the former isn't Besides petal color the insect pollinated flowers also have insect attracting smell where as in wind pollinated flowers the petals are neither attractive nor scented.
How are petals adapted to wind pollination?
There are certain adaptations for wind pollinated flowers..one, is being light and has plenty of hairy structures to trap pollen or being carried by air easily. two, the morphology and phyllotaxy of such flower is arranged in a manner at which wind can blow it easily and its reproductive activities perfectly suits the external environment.
Is pollen filled air a homogeneous mixture?
It would be considered heterogenous. If you were to look closely at the air with a light source present the pollen particles become a lot more evident. Only a mixture of gasses in this case would be considered homogenous because there is only one substance front as opposed to the clearly defined surface of a pollen grain.
Are wind pollinated flowers petals small?
Yes, wind pollinated flower petals are small, because they do not need to be showy to attract insects.
