Topic: Reproduction Aim: Describe the structure of a flower and how it uses sexual reproduction. Do Now: 1. Take out the Seeds ISN. 2. Sit next to your 6 o’clock partner to work on the do now. HW: Ditto – Embryonic Development

Identify the type of development observed in the diagram. Identify the types of organisms that use this type of development. Identify the source of nutrition for the embryo. Identify what cushions and protects the embryo. External development Aquatic and terrestrial Yolk Amniotic fluid

B - ovary D - uterus A - oviduct D - uterus Ovulation Meiosis Identify the structure that produces estrogen and progesterone. Where does a zygote develop? Where is the egg fertilized? Where does the placenta form? Identify the process when an egg is released from an ovary. Identify the process that occurs in the ovaries. B - ovary D - uterus A - oviduct D - uterus Ovulation Meiosis

Identify the process occurring in the diagram below Identify the process occurring in the diagram below. Support your answer. http://www.youtube.com/watch?v=VPHFzHRyZ1k

Topic: Reproduction Aim: Describe the structure of a flower and how it uses sexual reproduction. Do Now: Take out your HW and the Seeds ISN HW: CL Sexual Reproduction due Monday< March 9th Reproduction Exam on Tuesday, March 10th

1. How do non-flowering plants reproduce? Grow from spores instead of seeds 1. How do non-flowering plants reproduce?

2. Identify the function of petals. Brightly colored to attract insects to pick up pollen from the flower and carry it to the next flower (POLLINATION) How are flowers pollinated? 2. Identify the function of petals.

Some grasses have small, dull, off-white flowers. Use wind to blow pollen grains to other plants 3. Identify an example of how pollination occurs in plants without petals.

Sepals 4. Identify the structures that protect the flower when it is still a bud.

5. Describe the appearance of sepals. Leaves that form a ring around petals Usually green or brown

Stamen Anther and filament 6. Identify the male parts of a flower and the two parts its consists of. Stamen Anther and filament

Anther Pollen: male gamete 7. Identify the male reproductive structure that produces and contains pollen. Anther Pollen: male gamete

How many sperm nuclei are present in a pollen grain?

8. Identify the male reproductive structure that holds up the anther. Filament

Pistil Stigma, style and ovary 9. Identify the female part of the flower and the three parts it consists of. Pistil Stigma, style and ovary

Stigma 10. Identify the female reproductive structure that pollen grains stick to.

11. Identify the female reproductive structure that holds up the stigma Style

Ovary 12. Identify the female reproductive structure that contains the ovules.

13. Identify what is found in the ovules. Eggs 13. Identify what is found in the ovules.

14. Describe what pollination is. When pollen sticks to the stigma. 14. Describe what pollination is.

15. Describe what happens once pollination occurs. Pollen tubes form down the style from pollen grains to allow pollen to travel down the style and into ovary 15. Describe what happens once pollination occurs.

16. Describe the 2 things that occur once fertilization occurs. Ovules become seeds Ovary turns into fruit

17. Identify the flower structure that produces nectar. Nectaries

18. How do insects drinking the nectar help in pollination? Insects have to reach deep down into flower to find nectar. Pick up pollen and carry it to next flower.

19. Identify the structure where parts of the flower are attached. Receptacle

Cross pollination or self pollination?

Topic: Reproduction Aim: Describe the structure of a flower and how it uses sexual reproduction. Do Now: Take out the Seeds ISN and the Embryonic Development HW HW: Bring your textbooks to class tomorrow!!! CL Sexual Reproduction due Monday< March 9th Reproduction Exam on Tuesday, March 10th

3 1 2 Cleavage Zygote Fertilization A B C 4 5 Blastula Gastrula

H G F E stigma anther style petal filament ovary sepal ovule Identify the male reproductive structure and its parts. Identify the female reproductive structure and its parts. Where are gametes produced? By what process? What happens during pollination? Identify what assists in pollination. How do the sperm nuclei get to the ovules? What happens to the ovules and ovary once the eggs are fertilized?

1. Identify what is found inside the seed. Plant embryo Food supply – cotyledon

2. Describe the function of the seed coat. Surrounds and protects the embryo Keeps the contents of the seed from drying out

3. Describe the function of the cotyledon. Provides nutrients for the embryo as it grows.

4. Identify what dispersal in line 3 refers to. Spreading

5. Identify what enables a seed to last for long periods of time. Embryo stops growing while it is still small. When it starts to grow again, it uses nutrients in the cotyledon.

6. Describe seed germination. Early growth stage of plant embryo

7. Identify the 2 conditions needed for a seed to germinate. Water Suitable temperature

Seed Structure Embryo

http://www.youtube.com/watch?v=bwCpQflmQG4&feature=related http://www.youtube.com/watch?v=KMQtLWpAdXI&feature=related

Let’s summarize… Describe the male reproductive organ of the flower. 2. Describe the female reproductive organ of the flower. 3. Explain what occurs during pollination. 4. Explain what occurs after pollination. 5. Explain what happens to the flower once the eggs are fertilized. 6. Describe the structure of a seed.

The part of the pistil which contains the pollen tube is the stigma style ovary ovule

The transfer of pollen between the anther and the stigma in any flowering plant or plants is called fertilization pollination photosynthesis transpiration

The sex cells in a flowering plant are located in the sepals and petals (2) stigma and nectar (3) fruit and seed (4) stamens and pistil

In order to reach an ovule, a ___________ grows through the style and into the ovary. sepal (2) fruit (3) pollen tube (4) seed

The egg cell of a flowering plant develops in the pollen grain (2) ovule (3) stigma (4) fruit

The sperm of flowering plants is contained in the ovule pollen grains style stigma

The entire female reproductive organ in flowering plants is called the pistil stamen stigma sepals

The sticky top of the pistil is called the style anther stigma filament

Which statement below is true? Nymphs after emerging from eggs look like adult insects. Larva after emerging from eggs look like adult insects. Nymphs will develop inside pupa before emerging as adults.

At what stage of development is the insect encased in a protective cocoon? Larva Nymph Pupa Egg

At what stage of development do insects appear work-like? Larva Nymph Pupa Egg