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Cell Reproduction <ul><li>Prokaryotes Bacteria </li></ul><ul><li>Eukaryotes Plants & animals </li></ul>
Eukaryotes <ul><li>Contain a nucleus & membrane bound organelles </li></ul><ul><li>Asexually reproduce (divide) cells by m...
Cell Cycle <ul><li>Stages in growth & division </li></ul><ul><li>Interphase </li></ul><ul><ul><li>G1  Phase </li></ul></ul...
Interphase – Resting Stage <ul><li>Cells carrying on normal activities </li></ul><ul><li>Chromosomes aren’t visible </li><...
Interphase
Interphase - G1 Phase <ul><li>First growth stage </li></ul><ul><li>Cell increases in size </li></ul><ul><li>Cell prepares ...
Interphase - Synthesis Phase <ul><li>Copying of all of DNA’s instructions </li></ul><ul><li>Chromosomes duplicated </li></ul>
Interphase - G2 Phase <ul><li>Time between DNA synthesis & mitosis </li></ul><ul><li>Cell continues growing </li></ul><ul>...
M Phase (mitosis) <ul><li>Cell growth & protein production stop </li></ul><ul><li>Cell’s energy used to make 2 daughter ce...
Life Cycle of a Cell Mitosis is a cycle with no beginning or end .
Cells Undergoing Various Stages of Mitosis
Stages of Mitosis <ul><li>Prophase </li></ul><ul><li>Metaphase </li></ul><ul><li>Anaphase </li></ul><ul><li>Telophase </li...
Cytokinesis <ul><li>Means division of cytoplasm and all organelles within </li></ul><ul><li>Occurs after chromosomes separ...
Cytokinesis Cell Plate Forming in Plant Cells
Cytokinesis Cleavage furrow in animal cell Cell plate in animal cell
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Cell cycle

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Transcript of "Cell cycle"

  1. 1. Cell Reproduction <ul><li>Prokaryotes Bacteria </li></ul><ul><li>Eukaryotes Plants & animals </li></ul>
  2. 2. Eukaryotes <ul><li>Contain a nucleus & membrane bound organelles </li></ul><ul><li>Asexually reproduce (divide) cells by mitosis for the purpose of </li></ul><ul><ul><li>repair damaged cells </li></ul></ul><ul><ul><li>growth of organism </li></ul></ul><ul><ul><li>development of organism </li></ul></ul>
  3. 3. Cell Cycle <ul><li>Stages in growth & division </li></ul><ul><li>Interphase </li></ul><ul><ul><li>G1 Phase </li></ul></ul><ul><ul><li>S Phase </li></ul></ul><ul><ul><li>G2 Phase </li></ul></ul><ul><li>M Phase </li></ul><ul><li>Cytokinesis </li></ul>
  4. 4. Interphase – Resting Stage <ul><li>Cells carrying on normal activities </li></ul><ul><li>Chromosomes aren’t visible </li></ul><ul><li>Cell metabolism is occurring </li></ul><ul><li>Occurs before mitosis </li></ul>
  5. 5. Interphase
  6. 6. Interphase - G1 Phase <ul><li>First growth stage </li></ul><ul><li>Cell increases in size </li></ul><ul><li>Cell prepares to copy its DNA </li></ul>
  7. 7. Interphase - Synthesis Phase <ul><li>Copying of all of DNA’s instructions </li></ul><ul><li>Chromosomes duplicated </li></ul>
  8. 8. Interphase - G2 Phase <ul><li>Time between DNA synthesis & mitosis </li></ul><ul><li>Cell continues growing </li></ul><ul><li>Needed proteins produced </li></ul>
  9. 9. M Phase (mitosis) <ul><li>Cell growth & protein production stop </li></ul><ul><li>Cell’s energy used to make 2 daughter cells </li></ul><ul><li>Called mitosis or karyokinesis (nuclear division) </li></ul>
  10. 10. Life Cycle of a Cell Mitosis is a cycle with no beginning or end .
  11. 11. Cells Undergoing Various Stages of Mitosis
  12. 12. Stages of Mitosis <ul><li>Prophase </li></ul><ul><li>Metaphase </li></ul><ul><li>Anaphase </li></ul><ul><li>Telophase </li></ul><ul><li>Remember: PMAT </li></ul>
  13. 13. Cytokinesis <ul><li>Means division of cytoplasm and all organelles within </li></ul><ul><li>Occurs after chromosomes separate </li></ul><ul><li>Forms two, identical daughter cells </li></ul>
  14. 14. Cytokinesis Cell Plate Forming in Plant Cells
  15. 15. Cytokinesis Cleavage furrow in animal cell Cell plate in animal cell
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