Mitosis ppt

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  • {"21":"A mnemonic to help remember the stages of mitosis.\n"}
  • Mitosis ppt

    1. 1. Asexual Reproduction Mitosis DSQ: Mitosis is the process in which the nucleus divides to form two new nuclei. How does mitosis differ in plants and animals? 1 1
    2. 2. Asexual Reproduction Mitosis DSQ: Mitosis is the process in which the nucleus divides to form two new nuclei. How does mitosis differ in plants and animals? ANALYZE (break apart, study the pieces) There is a question within a question in this DSQ. 2 Can you identify the question within the DSQ? 2
    3. 3. How do little elephants grow up to be BIG elephants?
    4. 4. The process of asexual reproduction begins after a sperm fertilizes an egg.
    5. 5. Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun. Cell that reproduce by asexual reproduction reproduce constantly.
    6. 6. Animated Mitosis Cycle http://www.cellsalive.com/mitosis.htm • Interphase • Prophase • Metaphase • Anaphase • Telophase & Cytokinesis
    7. 7. • • Chromosomes are copied (# doubles) Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome and its copy(sister chromosome) change to sister chromatids at end of this phase Nucleus CELL MEMBRANE Cytoplasm
    8. 8. Animal Cell Plant Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
    9. 9. • • • Mitosis begins (cell begins to divide) Centrioles (or poles) appear and begin to move to opposite end of the cell. Spindle fibers form between the poles. Sister chromatids Centrioles Spindle fibers
    10. 10. Animal Cell Plant Cell Spindle fibers Centrioles Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
    11. 11. • Chromatids (or pairs of chromosomes) attach to the spindle fibers. Centrioles Spindle fibers
    12. 12. Animal Cell Plant Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
    13. 13. • Chromatids (or pairs of chromosomes) separate and begin to move to opposite ends of the cell. Centrioles Spindle fibers
    14. 14. Animal Cell Plant Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
    15. 15. • • • Two new nuclei form. Chromosomes appear as chromatin (threads rather than rods). Mitosis ends. Nuclei Chromatin Nuclei
    16. 16. Animal Cell Plant Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
    17. 17. • Cell membrane moves inward to create two daughter cells – each with its own nucleus with identical chromosomes.
    18. 18. Animal Mitosis -- Review Interphase Prophase Metaphase Anaphase Telophase Interphase
    19. 19. Plant Mitosis -- Review Interphase Prophase Metaphase Anaphase Telophase Interphase
    20. 20. 22
    21. 21. - Cell Division 23 23
    22. 22. http://www.cellsalive.com/mitosis.htm

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