1. In flowering plants and trees Angiosperms
Plant Reproduction
In flowering plants and trees
Angiosperms

2. Most flowers have 4 basic parts.
petals
pistil
stamen
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)
stamens
male organs, produce sperm in pollen grains

5. Pistils ( ) are made of 3 parts.
stigma
style
ovary
produces egg(s)

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

7. Identify the structures in this flower.
petal
stigma
pistil
style
anther
stamen
filament
Where is the ovary?
Where are the sepals?

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

9. There are 2 types of pollination.
When pollen lands on a stigma of the same flower, this is self-pollination.

10. When pollen lands on a stigma of a separate flower, this is cross-pollination.

11. Pollination agents include wind, water, and organisms.

12. 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

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

14. Maturing Ovary

15. Some plants develop fleshy fruits like apples, grapes, tomatoes, and cucumbers.
Other plants develop dry fruits such as peanuts and walnuts, or grains like wheat, barley, and rice.

16. Reproduction

17. Which of these are fruits (ripened ovaries)?
Hint: If it has a seed, it’s a fruit.

18. Seed Dispersal What determines how seeds are dispersed?
Why are seeds dispersed?

19. In Gymnosperms a.k.a conifers, pine trees, evergreens
Reproduction
In Gymnosperms
a.k.a conifers, pine trees, evergreens

20. What are gymnosperms?
Produce seeds protected in woody structures called cones.

21. The Process Male cones produce pollen (sperm)
Female cones produce ovule or eggs
Pollinated by wind