Topic: ReproductionAim: 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

1. Identify the type of development observed in the diagram.

2. Identify the types of organisms that use this type of development.

3. Identify the source of nutrition for the embryo.

4. Identify what cushions and protects the embryo.

External development

Aquatic and terrestrial

Yolk

Amniotic fluid

1. Identify the structure that produces estrogen and progesterone.

2. Where does a zygote develop?

3. Where is the egg fertilized?

4. Where does the placenta form?

5. Identify the process when an egg is released from an ovary.

6. Identify the process that occurs in the ovaries.

B - ovaryD - uterus

A - oviduct

D - uterus

Ovulation

Meiosis

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

Topic: ReproductionAim: 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

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?

3. Identify an example of how pollination occurs in plants without petals.

• Some grasses have small, dull, off-white flowers.

• Use wind to blow pollen grains to other plants

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

•Sepals

5. Describe the appearance of sepals.

•Leaves that form a ring around petals

• Usually green or brown

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

•Stamen•Anther and filament

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

9. Identify the female part of the flower and the three parts it consists of.

•Pistil•Stigma, style and

ovary

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

•Stigma

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

•Style

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

•Ovary

13. Identify what is found in the ovules.

•Eggs

14. Describe what pollination is.

•When pollen sticks to the stigma.

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

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: ReproductionAim: 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

1 23

4 5

A B

C

Fertilization ZygoteCleavage

Blastula Gastrula

EF

G

H anther

petal

filament

sepal

stigma

style

ovaryovule

1. Identify the male reproductive structure and its parts.2. Identify the female reproductive structure and its parts.3. Where are gametes produced? By what process?4. What happens during pollination?5. Identify what assists in pollination.6. How do the sperm nuclei get to the ovules?7. 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

http://en.wikipedia.org/wiki/File:Sunflower_seedlings.jpg

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…1. 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

(1)stigma(2)style(3)ovary(4)ovule

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

(1)fertilization(2)pollination(3)photosynthesis(4)transpiration

The sex cells in a flowering plant are located in the

(1) 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.

(1)sepal(2) fruit(3) pollen tube(4) seed

The egg cell of a flowering plant develops in the

(1) pollen grain(2) ovule(3) stigma(4) fruit

The sperm of flowering plants is contained in the

(1) ovule(2) pollen grains(3) style(4) stigma

The entire female reproductive organ in flowering plants is called the

(1)pistil(2)stamen(3)stigma(4)sepals

The sticky top of the pistil is called the

(1)style(2)anther(3)stigma(4)filament

Which statement below is true?

(1)Nymphs after emerging from eggs look like adult insects.

(2)Larva after emerging from eggs look like adult insects.

(3)Nymphs will develop inside pupa before emerging as adults.

At what stage of development is the insect encased in a protective cocoon?

(1)Larva(2)Nymph(3)Pupa(4)Egg

At what stage of development do insects appear work-like?

(1)Larva(2)Nymph(3)Pupa(4)Egg