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Chapter 10 Cell Growth & Division

Chapter 10 Cell Growth & Division. Section 10–1 Cell Growth. Limits To Cell Growth. Key Concept : The Larger A Cell Becomes, The More Demands The Cell Places On Its DNA And The More Trouble The Cell Has Moving Enough Nutrients And Waste Across The Cell Membrane. DNA Overload.

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Chapter 10 Cell Growth & Division

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  1. Chapter 10Cell Growth & Division Section 10–1Cell Growth

  2. Limits To Cell Growth Key Concept: The Larger A Cell Becomes, The More Demands The Cell Places On Its DNA And The More Trouble The Cell Has Moving Enough Nutrients And Waste Across The Cell Membrane

  3. DNA Overload • Extra Copies Of DNA Are Not Made • Like A Small Town – Infrastructure Needs To Grow As The Town Grows

  4. DNA Overload

  5. Exchanging Materials • Cell Membrane (Surface Area) • Nutrients Enter • Waste And Products Leave • The Amounts Of Nutrients Needed And The Amount Of Waste Produced • Depends On The Cells Volume

  6. Ratio of Surface Area To Volume

  7. Ratio of Surface Area To Volume • As Cell Size Increases • Volume Increases More Rapidly • Than Surface Area (cell membrane) Cell Membrane Can Not Cycle Nutrients and Wastes Fast Enough.

  8. Restricts The Size Of Cells Ratio of Surface Area To Volume

  9. Cell Division Cells Divide Before They Become To Large Cell Division Is The Process By Which A Cell Divides Into Two Daughter Cells

  10. Cell Division Before A Cell Divides It Replicates Its DNA So Each Cell Has An Exact Copy (Stay Tuned for 10-2)

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