a male gametophyte
A pollen grain represents the male reproductive cell in the life cycle of a plant. It is the structure responsible for fertilizing the ovules and producing seeds.
"Pollination is the transfer of the pollen grain from the anther to the stigma, where the pollen grain germinates, and becomes the mature male gametophyte." Source= Inquiry into Life Lab Manual. Therefore, the answer may be the mature male gametophyte...OR that it replaces a males sperm, depending on what your teacher is looking for. Hope this helps
Fertilization in the gymnosperm life cycle occurs when the pollen grain lands on the female cone and the male gametes fertilize the egg cell within the ovule. This typically happens after the pollen grain has been carried by wind to the female cone.
No, pollen does not contain a sporophyte. Pollen grains are the male gametophytes of seed plants, which produce sperm cells needed for fertilization. The sporophyte generation of seed plants is the dominant phase of the life cycle and produces the pollen.
pollen
because they produce pollen it involes seed dis[persal
It is different because the reproduction is spread by the wind. The wind carries the pollen and the pollen fertilizes the seed.
A asexual B Haploid C diploid D alternation of generation
Once the flower gets pollen, it starts to create seeds. That is the job of the flower. It is part of the cycle of life.
the grain harvest, the religious laws and the cycle of life and death.
it depends on gymnosperm (naked seed) or angiosperm (flowering plant) this is the angiosperm - Another germination event during the life cycle of gymnosperms and flowering plants is the germination of a pollen grain after pollination. Like seeds, pollen grains are severely dehydrated before being released to facilitate their dispersal from one plant to another. They consist of a protective coat containing several cells (up to 8 in gymnosperms, 2-3 in flowering plants). One of these cells is a tube cell. Once the pollen grain lands on the stigma of a receptive flower (or a female cone in gymnosperms), it takes up water and germinates. Pollen germination is facilitated by hydration on the stigma, as well as the structure and physiology of the stigma and style.[1] Pollen can also be induced to germinate in vitro (in a petri dish or test tube).[3][4] During germination, the tube cell elongates into a pollen tube. In the flower, the pollen tube then grows towards the ovule where it discharges the sperm produced in the pollen grain for fertilization. The germinated pollen grain with its two sperm cells is the mature male microgametophyte of these plants.[1
It is called 'Pollination'. It's one of the essential stages in the life cycle of a plant.