Bellringer:Complete the Punnett Square

1. Bellringer:Complete the Punnett Square G- green seeds g- yellow seeds Genotype: 50% Heterozygous Gg 50% Homozygous gg Phenotype: 50% Green 50% yellow g g G g G g G g g g g g

2. REPRODUCTION in Flowering Plants

3. I. FLOWERS • Are the organs of reproduction in flowering plants. • Reproduction of flowering plants takes place within flowers.

4. sepal petal Parts of A Flower • Sepals and petals are modified leaves. • Sepals are the outermostlayer that protect thedeveloping flower • Petals can help to attract animal pollinators by being brightly colored.

5. stamen filament anther • A stamen is the male structure of the flower. • anther produces pollen grains • The pollen contains the male gametes (sperm) • filament supports the anther

6. stigma style Pistil ovary • The innermost layer of a flower is the female pistil. (Also called a carpel) • stigma is sticky tip • style is tube leading from stigma to ovary • ovary produces female gametes • Inside the ovary are the ovules or eggs

7. Flower Parts pistil ovule

8. II. POLLINATION • A. Anther splits open when the pollen are mature • B. Pollen are carried to the stigma by wind, water, or animals. THIS is pollination • C. Plant reproduction is most successful when pollination rates are high Pollination is part of - • D. Sexual reproduction, which results in greater genetic diversity (good for the species survival)

9. Wind pollinated flowers have small flowers and large amounts of pollen.

10. Animal pollinated flowers have larger flowers and less pollen. pollen grains • pollination occurs as animals feed from flower to flower • animal pollination is more efficient than wind pollination

11. III. FERTILIZATION • A. Pollen is carried to the stigma in pollination • B. A pollen grain grows a tube down the style to the ovary • C. Sperm travel down the tube • D. In a process called fertilization, the sperm fertilizes the egg. • E. The fertilized Egg is called a ZYGOTE.

12. Fertilization

13. IV. FRUITS AND SEEDS • A. Following fertilization, the ovary develops into a fruit and the ovules become the seeds inside, while the rest of the flowerdies. • B. Fruits help protect the seeds until they mature and help scatter seeds into new habitats. -Fruits are the part of the plant that contain seeds: cucumbers, maple “helicopters”, green peppers, squash are all fruits.

14. Flower to Fruit

15. V. GERMINATION • A. At maturity, the seed coat dries and hardens, enabling it to survive harsh conditions • B. Once conditions are favorable, the seed germinates (sprouts/grows) and becomesa new plant.

16. Seed Anatomy

17. Seed Germination