Flowers as reproductive structures Grade 11 Life science By RB Letaba
Four Whorls of a flower Calyx (Sepals) Description: Outermost whorl of the flower, made up of green, leaf-like structures called sepals. Corolla (Petals) Description: The second whorl, composed of brightly coloured structures called petals. The calyx and corolla are known collectively as the perianth. Androecium (Male Reproductive Whorl) Description: The third whorl, consisting of stamens. Each stamen has two main parts: Anther Filament:. Gynoecium (Female Reproductive Whorl) Description: The innermost whorl, consisting of one or more carpels or pistils. Each carpel has: Stigma. Style. Ovary.
Labelled flower diagram
Functions of the male and female reproductive structures of a flower Male Reproductive Structure Anther: Produces pollen grains (male gametes) Filament: Stalk that supports the anther and positions it for effective pollen transfer. Female Reproductive Structures Stigma: Sticky surface that receives pollen during pollination Style: Tube-like structure that connects the stigma to the ovary Ovary: Contains ovules, which develop into seeds after fertilization