1. Reproduction of Seed Plants
Chapters 24

2. Reproduction with Cones and Flowers

3. Life Cycle of Gymnosperms
Reproduction in gymnosperms takes place in cones
Male cones produce – pollen grains
Female cones produce – ovules

6. Structure of Flowers
Flowers are reproductive organs that are composed of 4 kinds of specialized leaves

8. Sepals
Enclose the bud before it opens, leaf-like

9. Petals
Brightly colored, attract insects to flower

10. Stamen Male reproductive structure of flower, made of 2 parts Anther
Filament – long, thin, stalk that supports the anther
Anther – makes pollen grains
Anther
Filament
Anther + Filament = Stamen

13. Pistil
Female reproductive structure, made of 3 parts

14. Stigma
where pollen grains land, sticky

15. Style
Connects stigma to ovary
Style

16. Ovary
swollen base of the pistil where ovules are formed

19. Pollination
Most gymnosperms and some angiosperms are wind pollinated, whereas most angiosperms are pollinated by animals
Insect pollination is beneficial to insects and other animals because it provides them with food
Plants also benefit because this method of pollination is more efficient

20. Q: What kind of symbiotic relationship is this?
A: Mutualism

21. Seed Dispersal
Animals
Wind and water

25. Ultraviolet Flowers