Sexual and Asexual Reproduction in Plants

654 Words Jan 30th, 2018 3 Pages
In sexual reproduction angiosperms use their flowers to attract insects/birds to help with pollinating to distance plants of the same species. The insects and birds are attracted to the flower by sight and/or smell. Some flowers will look like a potential mate, some look pretty; others have the smell of nectar. When both the plant and its pollinator benefit from the experience it is considered mutualistic symbioses. An angiosperm has three stages in its life cycle; flowers, double fertilization, and fruits. While all plants move between haploid and diploid generations. During the haploid generation, mitosis produces gametophytes, which when fertilized become sporophyte. Sporophytes are diploid and use meiosis to produce gametophytes. These stages cause a continuous cycle between the two generations.
Flowers can contain four floral organs. Two of these are sterile parts, sepals and petals. Sepals are more for protections, while petals are used for attraction of pollinators. Stamens and carpels are the parts of the flowers that are used in the reproduction. The stamen is considered the male reproductive organs; this consists of anther and filament. The filament is where the pollen if located, the pollen is used to “impregnate” another plant. Carpels consist of stigma, style and ovary. At the stigma a sticky liquid is produced to help catch the pollen, this pollen produces a tube that moves down the style and allows…