Pollination of flowers Flashcards
what does pollination lead to
When pollen is moved within a flower or carried from one flower to another of the same species, it leads to fertilisation
why is the transfer of pollen so important
the transfer of pollen is necessary for the longevity of plant species, healthy ecosystems and to maintain a rich genetic biodiversity within the natural environment
what is the definition of pollen
thetransferofpollenfrom anantherto thestigmaof a flower of the same species.
what is the Stamen in a flower
Thestamenis themale structureof the flower, and it consists of ananthersupported by afilament. Theantheris thepollen-producingstructure of the stamen.
what is the Carpel in a flower
Thecarpelis thefemale structureof the flower, and it consists of astigma,style,ovulesand anovary.
when does pollination begin
once apollen grain lands on the sticky surface of thestigma.
what does the stamen consist of
a filament and an anther
how do the filament and anther work
The filament supports the anther, by holding it at a specific point to best facilitate pollen release.
what does the anther contain
pollen sacsormicrosporangia
what do pollen grains contain
the male sex cells, calledmicrospores
what are microspores
haploidsex cells formed during the process of meiosis.
What do the Ovary contain
ovules or female sex cells, calledmegaspores.
what are Megaspores
haploidsex cells that form during the process of meiosis.
