1. Plant Reproduction

2. Life Cycle of Gymnosperms
Occurs in cones
Pollen Cones – male cone produces pollen
Seed Cones – female cone has 2 ovules; larger
Pollination – wind
Fertilization and Development
Produce a diploid zygote  embryo  seed

3. Gymnosperm Life Cycle

4. Structure of Flowers Reproductive Organs Specialized Leaves Sepals
Petals
Stamens
Carpels

5. Structure of Flowers
Sepals – encloses & protects the bud before flower opens; green
Petals – brightly colored; attract insects

6. Structure of Flowers Stamens – male part
Anther – produces pollen
Filament – stalk supporting anther
Carpels – inner most part; pistils
Ovary – contains female gametes
Style – stalk connecting ovary and stigma
Stigma –where pollen lands

7. Life Cycle of Angiosperm
Occurs in flowers
Specialized leaves: sepals, petals, stamens, carpels
Pollination – by animals
After fertilization, the ovary walls thicken to form a fruit to enclose developing seed

8. Life Cycle of Angiosperm

9. Seed Development Dispersed by:
animals – fleshy, nutritious fruit
wind or water – lightweight
Dormancy – embryo is alive, but not growing
Long distance dispersal
Germinate under ideal growth conditions
Germination – early growth of a plant embryo
Temperature and moisture

10. Attracting Insects