Kategorier: Alle - pollination - seeds - structure - reproduction

af Agustin Sarmiento 8 år siden

821

From Flower to Seed

Flowers play a crucial role in the reproduction of angiosperms by producing pollen and seeds. The male reproductive structure, known as the stamen, consists of an anther that generates pollen, and a filament that supports the anther.

From Flower to Seed

Sepals: encloses & protects flower before it blooms Petals: usually colorful & scented; attracts pollinators

Filament: thin stalk; supports anther Anther: knob-like structure; produces pollen Pollen: contains microscopic cells that become sperm cells

Stigma: sticky tip; traps pollen Style: slender tube; transports pollen from stigma to ovary Ovary: contains ovules; ovary develops into fruit Ovule: contains egg cell which develops into a seed when fertilized

Pistil

female reproductive structure

Stamen

male reproductive structure

From Flower to Seed

Structure of a Flower

Flower

A reproductive structure of angiosperms; produces pollen in the anthers of stamens and seeds in a fruit; the mature ovary of a pistil.

How do flowers reproduce?

Pollen from an anther is caught by the stigma, travels through style to the ovules in the ovary. This is called cross pollination. This turns into a fruit; an ovary containing seeds.