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OMM Lesson 9 Sexual Reproduction in Flowering Plants

OMM Lesson 9 Sexual Reproduction in Flowering Plants. Question:. What purpose do flowers serve?. Hypothesis:. “I believe flowers serve as…because….”. Procedure:. pages 108-110. Data - Inquiry 9.1. Trace and label the picture on page 108 Drawing #1 – “XXX – A Perfect Flower”

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OMM Lesson 9 Sexual Reproduction in Flowering Plants

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  1. OMM Lesson 9Sexual Reproduction in Flowering Plants

  2. Question: What purpose do flowers serve?

  3. Hypothesis: “I believe flowers serve as…because….”

  4. Procedure: • pages 108-110

  5. Data - Inquiry 9.1 • Trace and label the picture on page 108 • Drawing #1 – “XXX – A Perfect Flower” • Drawing #2 – “Male Reproductive Structure – The Stamen” • Drawing #3 – 3 Pollen Grains • Drawing #4 – “XXX – Ovule”

  6. Data Analysis: • Why do you think some flowers have so many pollen grains and ovules? • Using “The Wonder of Flowering Plants”, create a timeline of the events that happen starting with pollination and ending with fruit/seed production. (hint: there are about 6 steps)

  7. Conclusion: • Go back and answer our original question.

  8. Inquiry 9.2 Pollination • Procedure on p 111 • Pollinate your set of Wisconsin Fast Plants by moving pollen from the anthers to the stigma. • Keep the “pollinator” • Repeat the pollinating process for about one week

  9. Lesson 9 Word Wall • Fertilization • Haploid • Perfect Flower • Imperfect Flower • Meiosis • Ovary • Ovule • Pollen • Pollination • Self-pollinate • Runners • Budding • Bulbs • Cuttings • Asexual reproduction • Sexual reproduction • Anther • Cross-pollinate • Diploid • Stigma

  10. Lesson 9 Word Wall • Runners – Asexual reproduction found in strawberries • Budding – Asexual reproduction found in Hydra and yeast • Bulbs – Asexual reproduction found in tulips. Bulbs can be split and replanted • Cuttings – Asexual reproduction which grows a new plant from a twig or limb placed in soil or water • Asexual reproduction – formation of new individuals from 1 parent, without the union of male and female sex cells

  11. Sexual reproduction – new organisms are formed by the union of both male and female sex cells • Anther – male – produces the pollen • Cross-pollinate – pollen moves from one plant to another plant • Diploid – cells contain the full set of chromosomes (body cells = 46 in humans) • Stigma – female – sticky top of the pistil

  12. Fertilization – the union of the male sperm (pollen in plants) and the female egg (ovule in plants) • Haploid – a cell that contains only half the normal number of chromosomes (sex cells – sperm/egg = 23 in humans) • Perfect Flower – a flower that has both the male and female reproductive structures (pistil and stamen) • Imperfect Flower – a flower that only has the male or female reproductive structure

  13. Meiosis – the process responsible for sex cell creation. It turns 1 diploid cell into 4 haploid cells. • Ovary – female – produces the eggs (ovules) • Ovule – female - eggs • Pollen – male - sperm • Pollination – pollen from an anther comes in contact with the sticky stigma of a pistil • Self-pollinate – when pollen is transferred to the stigma of a flower on the same plant

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