1. Review of plant reproduction

2. Most flowers have 4 basic parts.
petals
Pistil (Female)
Stamen (male)
sepals

3. Some floral structures are not needed for reproduction.
sepals
leaf-like structures which protect the flower before blooming
petals
Colorful to attract pollinators such as insects, birds, etc.

4. Some floral structures are essential for reproduction to occur.
pistil
female organ, produces egg(s) or
ovules
stamens
male organs, produce sperm in pollen grains (also called a gametophyte)

5. Pistils ( ) are made of 3 parts.
stigma
style
Can also be
Called the
carpels
ovary
produces egg(s)

6. Stamens are made of 2 parts.
anther
produces pollen
filament

7. When pollen lands on the stigma, this process is called pollination.
Flowers can self-pollinate or cross pollinate

8. Fertilization occurs when the sperm reaches and unites with the egg.
They become one new cell called a zygote.
The zygote grows and develops into a seed.
zygote
zygote

9. The ovary grows into a protective fruit.
This means that anything you eat with a seed(s) is a ripened ovary.

10. Fruits: Contain seeds
Vegetables: Do not contain seeds

11. The stored food supply is referred to as an endosperm.
Seed coat
Embryo
Stored food supply
Seed
Wing
The stored food supply is referred to as an endosperm.

12. Dispersal
Seeds need to be dispersed away from the parent plant to allow the new seed a chance at surviving without having to compete for resources like water, nutrients, sunlight.

13. Dispersal of seeds by wind

14. Dispersal of seeds by water

15. Dispersal of seeds by bursting

16. Dispersal of seeds by animal