1. 24.1 Reproduction in Flowering Plants

2. Q: What are flowers?
A: Flowers are reproductive organs that are composed of four different kinds of specialized leaves: sepals, petals, stamen, & carpels

3. Sepal-encloses the bud before opening.
Petal-attract insects. Found inside the sepal.

4. The Structure of Flowers
Male Parts
Stamen-contains anther & filament
Anther-structure on which pollen grains are produced.

5. Female Parts
Carpel-Innermost part of a flower that produces & shelters the female gametophytes. Contains:
Stigma-Sticky part at the top of style; specialized to capture pollen.
Pistil-Single carpel or several fused carpels; contains the ovary, style, & stigma.
Ovules-Future seeds

6. Q: How does fertilization in angiosperms differ from fertilization in other plants?
A: The process of fertilization in angiosperms is distinct from that found in other plants. Two fertilization events take place --one produces the zygote and the other a tissue, called endosperm within the seed.

7. Development of: Male Gametophytes Female Gametophytes

8. Pollination mostly by wind &animals
Fertilization-zygote & endosperm.

9. Pollination & Fertilization
Pollen from the male anther, sticks to the female stigma and goes down to the ovule.
Fertilization occurs on the seed.

10. WB pgs Skip #21-24.