Flower Parts (K. Plantae) Unit 2 - Biodiversity

Angiosperms Have unique reproductive organs called flowers Flowers contain ovaries, which surround and protect the seeds. The seed is enclosed Ovary develops into a fruit, which protects the seed and helps on dispersal. Contains both male and female parts

Flower Parts The female part is called the pistil or the carpel. The male part is called the stamen.

Stamen The male reproductive structure of a flowering plant. Consists of two parts anther Contains pollen Filament

Parts of the Stamen Anther the structure located on top of the stamen and carries the pollen

Parts of the Stamen Pollen Pollen is the male sex cell that donates half of the DNA to make a seed. It is a powdery substance, usually orange or yellow in color, that gets carried by pollinators.

Parts of the Stamen Filament a thread-like part that holds up the anther

Pistil/Carpel the female reproductive structure of a flowering plant

Parts of the Pistil/Carpel The innermost flower part Produces female gametes (ovule) Consists of three parts Stigma Style Ovary

Parts of the Pistil/Carpel Stigma the sticky surface on the top of the pistil; it traps and holds the pollen.

Parts of the Pistil/Carpel Style the tube-like structure that holds up the stigma

Parts of the Pistil/Carpel Ovary the plant part at the bottom of the flower that has ovules inside this turns into the fruit and seeds we eat.

Parts of the Pistil/Carpel Ovules the female sex cells inside the ovary that donate half the DNA to become the seed. (They become the seeds when pollinated or fertilized by the pollen.)

Other Flower Parts Petal the colorful flower parts that surround the reproductive structures. Function is to attract pollinators

Other Flower Parts Sepal the green petal-like parts at the base of the flower; they help protect the bud when it develops

Perfect Flowers Perfect flowers that have both male and female parts (ex. Roses, lilies, and pea plants)

Imperfect Flowers Imperfect: flowers with male or female parts (ex- cucumbers, pumpkins, and melons

Pollinators A pollinator is something that moves pollen from the male parts to the female parts.