Launch <ul><li>Do all cells in the body have the same DNA or different DNA? </li></ul><ul><li>How many chromosomes do all ...
Cell Division and Cell Cycle
 
 
 
 
 
 
 
 
 
Question… <ul><li>What does the title “cell division”  </li></ul><ul><li>make you think about? </li></ul>
NOTES
Cell division <ul><li>The process of one cell dividing into two daughter cells is called  cell division . </li></ul>
3 Reasons why cells reproduce <ul><li>Growth </li></ul><ul><li>Repair </li></ul><ul><li>Replacement </li></ul>
Think-Pair-Share: <ul><li>Name specific examples of when human cells need to make copies of themselves. </li></ul><ul><ul>...
Genetic Material <ul><li>DNA: Instructions found in the nucleus </li></ul><ul><li>A  chromosome  is  a long string of DNA ...
Chromosomes <ul><li>For example, humans have  46  chromosomes, but chickens have  78 . </li></ul>
Chromosomes <ul><li>A house fly has  12  chromosomes and a tomato plant has  24 . </li></ul>
Think-Pair-Share <ul><li>Does more chromosomes mean the organism is more complex? </li></ul>
Video <ul><li>http://www.youtube.com/watch?v=lf9rcqifx34&feature=related </li></ul>
The cell cycle <ul><li>The  cell cycle  is the period of time from the beginning of one cell division to the beginning of ...
Which part of the cell cycle takes the longest?
The cell cycle <ul><li>Interphase: </li></ul><ul><ul><li>the cell grows bigger, develops, and performs its functions.  </l...
The cell cycle <ul><li>DNA replication: </li></ul><ul><ul><li>the DNA makes a copy of itself </li></ul></ul><ul><ul><li>th...
The cell cycle <ul><li>Mitosis : </li></ul><ul><ul><li>The nucleus divides creating two cells, each with an identical set ...
 
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1 7 Cell Cycle

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1 7 Cell Cycle

  1. 1. Launch <ul><li>Do all cells in the body have the same DNA or different DNA? </li></ul><ul><li>How many chromosomes do all cells in the body have? </li></ul><ul><li>What does “divide” mean? </li></ul>
  2. 2. Cell Division and Cell Cycle
  3. 12. Question… <ul><li>What does the title “cell division” </li></ul><ul><li>make you think about? </li></ul>
  4. 13. NOTES
  5. 14. Cell division <ul><li>The process of one cell dividing into two daughter cells is called cell division . </li></ul>
  6. 15. 3 Reasons why cells reproduce <ul><li>Growth </li></ul><ul><li>Repair </li></ul><ul><li>Replacement </li></ul>
  7. 16. Think-Pair-Share: <ul><li>Name specific examples of when human cells need to make copies of themselves. </li></ul><ul><ul><li>Hint: think about growth, repair, and replacement. </li></ul></ul>
  8. 17. Genetic Material <ul><li>DNA: Instructions found in the nucleus </li></ul><ul><li>A chromosome is a long string of DNA that organizes the DNA. </li></ul>visible
  9. 18. Chromosomes <ul><li>For example, humans have 46 chromosomes, but chickens have 78 . </li></ul>
  10. 19. Chromosomes <ul><li>A house fly has 12 chromosomes and a tomato plant has 24 . </li></ul>
  11. 20. Think-Pair-Share <ul><li>Does more chromosomes mean the organism is more complex? </li></ul>
  12. 21. Video <ul><li>http://www.youtube.com/watch?v=lf9rcqifx34&feature=related </li></ul>
  13. 22. The cell cycle <ul><li>The cell cycle is the period of time from the beginning of one cell division to the beginning of the next. </li></ul><ul><li>It consists of three stages: </li></ul><ul><ul><li>interphase </li></ul></ul><ul><ul><li>mitosis </li></ul></ul><ul><ul><li>cytokinesis </li></ul></ul>
  14. 23. Which part of the cell cycle takes the longest?
  15. 24. The cell cycle <ul><li>Interphase: </li></ul><ul><ul><li>the cell grows bigger, develops, and performs its functions. </li></ul></ul><ul><ul><li>made up of G0, G1, S and G2 </li></ul></ul>
  16. 25. The cell cycle <ul><li>DNA replication: </li></ul><ul><ul><li>the DNA makes a copy of itself </li></ul></ul><ul><ul><li>the chromosomes double </li></ul></ul>
  17. 26. The cell cycle <ul><li>Mitosis : </li></ul><ul><ul><li>The nucleus divides creating two cells, each with an identical set of chromosomes. </li></ul></ul>

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