2. BELLWORK: Write the correct tropism to each scenario. 1. You place a lily plant in your windowsill to observe the movement of the flower. 2. The roots of a rosebush absorb the moisture provided by the rain. 3. A vine uses the nearby fence to latch onto. 4. As a seed begins to germinate, the roots grow downward and the stem grow upward. HAPPY THURSDAY Gravitropism Phototropism Thigmotropism Hydrotropism

3. Plant Notecards 4 th and 5 th Periods Due Friday (3/9/15) 1.Anther 2.Cellular Respiration 3.Filament 4.Flower 5.Germination 6.Glucose 7.Gravitropism 8.Hydrotropism 9.Leaf 10.Ovary 11.Petal 12.Phloem 13.Photosynthesis 14.Phototropism 15.Pistil 16.Pollen 17.Pollination 18.Roots 19.Sepal 20.Stamen 21.Stem 22.Stigma 23.Stoma 24.Style 25.Thigmotropism 26.Transpiration 27.Xylem

4. -Extra Credit **Due tomorrow** Only here till 3:30pm

5. Anticipation Guide: Decide if the following statements are true or false with your partner 1.Some plants are single celled organisms 2.Plants are prokaryotic and animals are eukaryotic 3.Plants are photosynthetic autotrophs 4.Plants have chitin in their cell walls 5.Pollination is a part of plant reproduction 6.There are carnivorous plants

6. Plants What makes a plant a plant? Plants are eukaryotic Plants have cell walls made of cellulose Plants make their own energy through photosynthesis Plants are multicellular

7. What plants need to survive… 1. Sunlight 2. Water 3. CO 2 & Oxygen

8. On today’s notes, you will divide them into 6 sections. You will write the bold, red for each section only.

9. Essential Question: How do the different parts of the plant work together to reproduce? Standard: Describe the interactions that occur among systems that perform the functions of transport, reproduction, and response in plants. (B10B)

10. Plant Parts/Systems Reproductive System = Flower (with male and female parts) Transport System = tissues in stem Nutrient System = Leaf + Root Structural Support System = Stem + Roots All of these parts and systems work together to help a plant maintain homeostasis.

11. Plant Reproduction Outline Flower structure Pollination Fruit Seed dispersal Germination Reproduction without Flowers 1 2 3 4 5 6

12. 1. Flower Structure Flowers are the reproductive organs of plants Have male and female parts

13. Male Reproductive Structure  The stamen consists of two parts: Anther and Filament  Anther = produces pollen  A = Anther  F = Filament

14. Female Reproductive Structure  The (sticky) stigma receives the pollen from the anther  The pollen grows a tube down through the style  Meiosis occurs in the ovary to produce ovules  J = Stigma  K = Style  L = Ovary  O = Ovule

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

16. How does the pollen get to the stigma?

17. 2. Pollination: the transfer of pollen from the anther to the stigma Cross-pollination: pollen travels from one flower to another. **This is desirable in plants as it promotes genetic variation. Click to view the animation

18. What OR who is responsible for getting pollen to the stigma?

19. Wind : Dull, scentless flowers with reduced petals Bees/Butterfly : Bright color, nectar, scent. They sip nectar, get pollen on coats, transfer pollen from flower to flower Bird: Nectaries, bright colors, tube-like flowers Moth: White petals, open at night Fly: Rank odor, flesh colored petals Forms of Pollination:

20. 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

21. 3. Fruit

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

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

24. Then we get…Fruit! {Ovary “ripens” into a fruit (using hormones) {Ovule develops into a seed

25. Flower to Fruit

26. 4. Seed Dispersal

27. Seed Dispersal Mechanisms = 1. Wind - Flight mechanisms, like parachutes, wings, etc. Ex. Dandelion, maples, birch 2. Animal - Fleshy fruits which animals eat, drop undigested seeds in feces or burrs which stick to animals’ coats 3. Gravity - Heavy nuts fall to ground and roll ex. acorns

28. 5. Germination

29. Germination = when the plant begins to grow out of its seed coat Seed coat = protects embryo and keeps seed from drying

30. 6. Reproduction without flowers

31. Mosses, ferns, and related plants have swimming sperm. The leafy tips of mosses produce male and female sex cells. Male sex cells swim through water on the surface of the plant to reach and fertilize female cells. Fertilization produces a spore capsule, that scatters spores into the air. What kind of environmental conditions would be required for reproduction in these plants? What kinds of limits does external reproduction impose on these plants?

32. Debrief: How do the response system in plants (tropisms) and the reproductive systems in plants interact? Hint…Think about the following pairs below for interactions! Hydrotropism & seed germination Phototropism & nutrients needed for the flower/fruit Gravitropism & seed germination or plant growth Thigmotropism & pollination mechanisms WORKTOGETHERWORKTOGETHER

33. Plant Quiz 1. Where is pollen made? stigma sepal anther ovary

34. Plant Quiz 2. Where is the ovule found in a flower? petals style nectary ovary

35. Plant Quiz 3. Pollination is the transfer from….? the stigma to anther style to stamen anther to stigma ovule to filament

36. Plant Quiz 4. Cross-pollination… Increases variation Decreases variation Is only performed by wind Is only performed by insects

37. Plant Quiz 6. Flowers are adapted for animal-pollination by… Having feathery stigmas Having a nectary Having bright petals and a scent Having sticky stigmas

38. Plant Quiz 7. Which mechanism for dispersal is used by the seed shown in the picture mechanical wind animal water

39. Plant Quiz 8. Which mechanism for dispersal is used by the seed shown in the picture mechanical animal wind water