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.