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Topic : Reproduction

Topic : Reproduction Aim : Describe the structure of a flower and how it uses sexual reproduction. Do Now : Take out your HW. HW : Earth Day Poster due Friday! Castle Learning – Reproduction Due Tuesday, April 19 th. Identify the process that produces the zygote.

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Topic : Reproduction

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  1. Topic: Reproduction Aim: Describe the structure of a flower and how it uses sexual reproduction. Do Now: Take out your HW. HW: Earth Day Poster due Friday! Castle Learning – Reproduction Due Tuesday, April 19th

  2. Identify the process that produces the zygote. • Identify the structure after the zygote. • What type of cell division occurs after the zygote? • Identify the structure in the diagram that labeled “embryo.” • Identify the process that occurs after the “embryo.” • Where would the blastula go in the diagram? fertilization morula mitosis gastrula differentiation After the morula

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

  4. 2. Why are petals brightly colored? • To attract insects to pick up pollen from the flower and carry it to the next flower

  5. PETALS

  6. 4. Identify 2 ways flowers can be pollinated. • By insects • Wind

  7. 5. Identify the structures that protect the flower when it is still a bud. • Sepals

  8. 6. Describe the appearance (COLOR) of sepals. • Usually green or brown

  9. PETALS SEPALS

  10. 8. Identify the male parts of a flower and the two parts its consists of. • Stamen • Anther and filament

  11. 9. Identify the male reproductive structure that produces pollen. • Anther • Pollen: male gamete

  12. ANTHER PETALS SEPALS

  13. How many sperm nuclei are present in a pollen grain?

  14. 11. Identify the part of the male reproductive structure that holds up the anther. • Filament

  15. ANTHER PETALS FILAMENT SEPALS

  16. 13. Identify the FEMALE part of the flower and the THRER parts it consists of. • Pistil • Stigma, style and ovary

  17. 14. Identify the female reproductive structure that pollen grains stick to. • Stigma

  18. ANTHER STIGMA PETALS FILAMENT SEPALS

  19. 16. Identify the female reproductive structure that holds up the stigma. • Style

  20. ANTHER STIGMA PETALS STYLE FILAMENT SEPALS

  21. 18. Identify the female reproductive structure that contains the OVULES. • Ovary

  22. ANTHER STIGMA PETALS STYLE FILAMENT OVARY SEPALS

  23. 20. Identify what is found in the ovules. • Eggs

  24. ANTHER STIGMA PETALS STYLE FILAMENT OVARY SEPALS OVULES

  25. 22. Describe what occurs during pollination. • When the flower is pollinated, the POLLENsticks to the STIGMA.

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

  27. A B C Pollen Identify the labeled structures in the diagram. A – B – C – D – E – F - D Stigma Pollen tube Style Ovary Egg E F

  28. 24. Describe the 2 events that occur once fertilization occurs. • After fertilization occurs, ovules become SEEDSand the ovary turns into the FRUIT.

  29. Cross pollination or self pollination?

  30. Stamen Pistil Anther Let’s review: • Identify the male part of the flower. • Identify the female part of the flower. • Where is pollen produced? • Where are eggs produced? • Identify the structure pollen stick to. • Identify the process in which pollen sticks to the stigma. • How are pollinators attracted to flowers? • How else can a flower be pollinated? • Identify the structure that forms in the style to bring pollen to the eggs. • What happens to the ovules and ovary once the eggs are fertilized? Ovules Stigma Pollination Petals Wind Pollen tube Ovary turns into the fruit. Ovules turns into the seeds.

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

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

  33. 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

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

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

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

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

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

  39. 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.

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

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

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

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