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Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
Cell reproduction (part 1)
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Cell reproduction (part 1)

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  • 1. Mr. Nettles Biology I: Cell Growth and Reproduction (Part 1)
  • 2. Today’s Objectives
    • I will define: growth , reproduction , asexual reproduction , and sexual reproduction .
    • I will explore an example of asexual reproduction.
    • I will explore an example of sexual reproduction
  • 3. Agenda – Wed., Sept. 21, 2011
    • Warm-Up
    • Lesson
    • Wrap-Up
    • Research (The Cell Cycle)
  • 4. Warm-Up (Review)
    • Which group of biomolecules is responsible for making and storing energy ?
    • A normal cell swells when placed in a mystery solution . Is that mystery solution hypotonic or hypertonic?
    • I am an organelle only present in animal cell. I transfer chromosomes during cellular reproduction. What am I?
  • 5.
    • Reproduction – making new cells or organisms from older cells or organisms
    • Growth – how an organism
    • increases in size
    • and complexity
    copyright cmassengale
  • 6. How do Prokaryotes grow and reproduce?
  • 7. Prokaryotes Review:
    • Lack a nucleus
    • Have a single chromosome
    • Reproduce by binary fission
    • Includes bacteria
    copyright cmassengale
  • 8. Asexual Reproduction
    • Reproduction that involves only one parent cell or organism.
    • Binary Fission is an example of asexual reproduction.
    copyright cmassengale
  • 9. Asexual Reproduction Short Film
  • 10. Steps in Binary Fission
    • Used by bacteria (prokaryotes)
    • Cells increase in size a little
    • DNA & cell parts are copied
    • Each cell divides into 2 daughter cells
    copyright cmassengale
  • 11. Binary Fission of Bacterial Cell copyright cmassengale
  • 12. How do We (Eukaryotes) grow and reproduce?
  • 13. Review Eukaryotes:
    • Contain a nucleus & membrane bound organelles
    • Reproduce cells by mitosis
    • Includes plants, animals, and people
    copyright cmassengale
  • 14. Sexual Reproduction
    • Reproduction that involves two parent cells or organisms.
    • Mitosis is an example of sexual reproduction.
    copyright cmassengale
  • 15. Sexual Reproduction Short Film
  • 16. How many cells do we begin with?
  • 17. 2
  • 18. How do we get more?
  • 19. Mitosis
    • Mitosis: 1 cell splits into 2 identical cells
    • Then 4, then 8, then 16…
  • 20. Mitosis
    • Mitosis is like dividing in half.
    • Mitosis has 1 cell division.
  • 21. Mitosis
    • The cells produced by mitosis are identical to the parent cells.
  • 22. Mitosis
    • Body cells divide by mitosis for growth and repair.
  • 23. Wrap-Up
    • What is the difference between asexual and sexual reproduction?
    • Binary Fission is an example of _________ reproduction.
    • Define Growth.
  • 24. Research: The Cell Cycle
    • Choose one of the following stages of the cell cycle: G1 phase, S phase, G2 phase, M phase, or Cytokinesis.
    • Use the internet to research information about the stage that you have chosen.
    • Write four interesting things about what you read:
        • What is it? (The definition)
        • What happens?
        • How long does it happen?
        • What’s used? (What special cell parts or organelles are involved)

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