Biology

Biology Gynoecium: - The gynoecium (from  antique Greek ????, gyne, substance woman, and ?????, oikos, meaning house) is a bound with several meanings in botanical usage. In file name extension to mosses, liverworts and hornworts,gynoecium refers to a cluster of archegonia and any associated modified leaves or stems pay on agametophyte shoot. More commonly, gynoecium refers to the ovule-producing part of a flower. The gynoecium is typically the innermost roster of structures in a flower and is surrounded (in consummate flowers) by the androecium (stamens) and (in complete flowers) by the perianth (petals and sepals). The gynoecium is often inaccurately [clarification needed] referred to as female because it concords rise to female (egg-producing) gametophytes.[1] The structural unit that comprises the gynoecium is the carpel. A gynoecium whitethorn consist of a single carpel, double evident (unfused) carpels or multiple connate (fused) carpels. Fl owers that bear a gynoecium just no androecium argon called carpellate. Flowers lacking a gynoecium are called staminate. Gynoecia give rise to and protect ovules (within one or much ovaries). When mature, gynoecia may function to attract pollinators (through nectaries or visual cues).

Gynoecia experience pollen on their surface (usually on a stigma), in both(prenominal) cases actively selecting genetically different pollen so as to raise taboo crossing. Gynoecia may facilitate pollen tube growth to the ovule and tar of the sperm cell to the egg. The gynoecium forms the pericarp of fruit. Androecium: - The stamen (plural stamina or stamens, from Latin stamen meaning swan of the warp) is the male reproductive elec! tric organ of a flower. apiece stamen generally has a stalk called the string (from Latin filum, meaning thread), and, on top of the filament, an anther (from Ancient Greek anthera, feminine of antheros flowery, from anthos flower), and pollen sacs, called microsporangia. The development of the microsporangia and the contained haploid...If you want to abbreviate a liberal essay, order it on our website: OrderEssay.net

If you want to get a full information about our service, visit our page: write my essay