Transcript Seed Plants - Cato-Meridian Central School District

Seed Plants
angiosperms
gymnosperms
The name for flowering plants that
produce seeds that have a
protective covering (fruit).
The name for plants that
produce seeds in cones and are
unprotected or “naked”.
Parts of the flower
pistil
The part that contains the female
reproductive organs.
stigma
The top part of the pistil that is
sticky to catch pollen.
style
The hollow tube connecting the
stigma to the ovary.
ovary
The hollow structure at the base of
the flower (turns into the fruit).
ovule(s)
This contains the egg cells
(turns into the seed(s)).
stamen
This is the structure that contains the
male reproductive organs.
anther
The knob-like structure that
produces the pollen.
pollen
Structure that contains the sperm
cell.
filament
The stalk-like structure of the
stamen.
petals
The very colorful leaf-like
structures that attract animals and
insects.
sepals
The leaf-like structure that protects
the developing flower (bud).
receptacle
Structure that connects the flower to
the stem.
perfect
A flower with both male and female
structures.
imperfect
A flower with only male or female
structures.
complete
incomplete
A flower with all the male, female, and
non-gender structures (stamen, pistil,
sepals, petals, and receptacle).
A flower missing any structure.
Making a Seed
pollination
The process by which the pollen is
carried to the stigma.
self-pollination
When the pollen from the anther is
carried to the stigma of the same
flower.
cross-pollination
When the pollen of the anther is
carried to the stigma of another
flower.
fertilization
When the sperm cell from the pollen
combines with the egg cell in the
ovule making a single cell.