1. Set up the journal pages below:
Glue in yesterdays tropisms on page 65
Date:
Page 66
Title: Plant Reproduction
Essential Question: How do systems interact to help a plant reproduce?

2. Which Tropism is being shown in the pictures….

3. Worksheet/looking at flower
Today’s plan
Finish Notes
Worksheet/looking at flower

4. Glue in yesterdays assignment on page 65

5. Trim the sides of your flower picture and make a small tab at the top
Glue on page 66

6. End of six weeks next Friday!

7. EQ: How do plants reproduce?
Standard
BIO.10B Describe the interactions that occur among systems that perform the functions of transport, reproduction, and response in plants.
EQ: How do plants reproduce?

8. What our finished notes will look like today

9. CHAMPS
C- No talking, unless you are called upon or we are coloring H- Raise your hand A- Take notes and color appropriately M- Stay in your seat at all times, raise your hand if you need to get up for any reason P- Take accurate notes

10. Flowers can be male, female, or both.
Flowers with both sets of reproductive structures are called “perfect” flowers.
We will use “perfect” flowers for our examples…just remember that not all flowers are created equal!
Make a tab at the top of your flower diagram. Use the tab to glue your flower onto your journal page. We will be writing notes UNDER the diagram!
You have two minutes to tab and glue the diagram into your journal.

11. Anticipation Guide: Decide if the following statements are true or false with your partner
Some plants are single celled organisms
Plants are prokaryotic and animals are eukaryotic
Plants are photosynthetic autotrophs
Plants have chitin in their cell walls
Pollination is a part of plant reproduction
There are carnivorous plants
FALSE
FALSE
TRUE
FALSE
TRUE
TRUE

12. Plant Parts/Systems Reproductive: Flower (with male and female parts)
Transport: vascular tissues in stem
Nutrient & Support: Leaves + Stem + Roots
Response: Hormones + Tropisms
All of these parts and systems work together to help a plant maintain homeostasis.

13. Plant Reproduction

14. Flowers: reproductive organs of some plants

15. MALE STRUCTURES
ANTHER: produces pollen (sperm); where meiosis occurs
FILAMENT: supports the anther
STAMEN: anther + filament
Find a Blue crayon or pencil. Color the male structures of your flower Blue. Be sure to add a key on your diagram!

16. FEMALE STRUCTURES:
STIGMA: sticky; receives pollen
STYLE: tube connecting stigma & ovary
OVARY: contains ovules (eggs); where meiosis occurs
PISTIL: stigma + style + ovary
Find a RED crayon or pencil. Color the female structures of your flower RED. Be sure to add a key on your diagram!

17. Make sure you have a key!

18. Reproductive Structures
Petals: colourful
structures that attract pollinators.
Sepals: surround and protect the flower bud.
Find any color you want, besides red or blue to color the rest of your flower

19. So, this is what sexual reproduction in plants looks like...awkward
Pollination
The pollen grain contains the male gamete

20. Where is pollen produced??

21. How does pollen get from the anther to the stigma?

22. Pollination: transfer of pollen from the anther to the stigma
Click to view the animation
This is an example of cross-pollination as the pollen travels from one flower to a different flower. This is desirable in plants as it promotes genetic variation.

23. Pollen can be transferred by:
Wind: Dull, scentless
flowers with reduced petals
Bees/Butterflies: Bright color, nectar, scent. They sip nectar, get pollen on coats,
transfer pollen from flower to flower
Birds: Nectaries, bright
colors, tube-like flowers
Moths: White petals,
open at night
Flies: Rank odor, flesh
colored petals

24. or having parts mature at different times
Self-pollination occurs when pollen falls from the anther onto the stigma of the same flower
Self-pollination is not desirable as it reduces genetic variation
Flowers will prevent self-pollination by either having stigma above stamen
or having parts mature at different times

25. Once pollination occurs a tube grows from the pollen grain down through the style to the ovule
stigma
style
carpel
ovary
Click to view the animation
ovule
Note: Petals not shown in order to simplify diagram

26. Fertilization: occurs when the pollen (male gamete) fuses with the ovule (the female gamete) **SEXUAL REPRODUCTION**
Click to view the animation

27. Seed and Fruit Development
After fertilization, the petals and sepals fall off flower
Ovary “ripens” into a fruit (hormones)
Ovule develops into a seed

28. Flower to Fruit

29. Seed Dispersal Mechanisms

30. Seed Dispersal Mechanisms- Allow plants to avoid competition with parent plant
Wind - Flight mechanisms, like parachutes, wings, etc. Ex. Dandelion, maples, birch
Animals - Fleshy fruits which animals eat, drop undigested seeds in feces or burrs which stick to animals’ coats
Gravity - Heavy nuts fall to ground and roll
ex. acorns

31. Reproduction without flowers

32. Flower Dissection Lab WS
Do NOT Touch the flowers! This is not really a dissection.
As you work on this, I will walk around to each table and ask you to identify parts on the real flower.
You have 15 min.
Skip #8

33. On the back of your WS Debrief/Summary:G E H
Explain how gravitropism and a plant’s reproductive system work together.
Hint: Think about seed dispersal mechanisms

34. Pistil Stigma style Ovary Stamen Anther Filament Petals Pollen
1. What is the female reproductive organ of the flower called? ______________________
2. What three parts make up the female reproductive organ?
____________________, ____________________ & ____________________
3. What is the male reproductive organ of the flower? __________________________
4. What two parts make up the male reproductive organ?
____________________ & ____________________
5. What floral structures are responsible for attracting pollinators? ___________________
6. Circle the structure that does not belong with the others:
7. What structure is produced in the anther and contains the male sex cells? ___________
8. What tissue provides nutrients for the new embryo? __________________________
9. After seeds mature what happens to the ovary? _______________________________
10. Describe sexual reproduction in plants.
Pistil
Stigma
style
Ovary
Stamen
Anther
Filament
Petals
Stigma
Ovary
Anther
Style
Ovule
Pollen
Ripens into a fruit
Pollen produced in the anther moves to the stigma drops into ovary and ripens into a fruit, seeds get dispersed and grow into new plant