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10/9/01 Homework

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1.  Explain why water is polar molecule.


2.  How does a hydrogen bond compare to a covalent bond?


3.  What property of water explains why it can travel to the tops

     of trees.


4.  What is the eventual result of diffusion?  Describe

     concentration prior to and at this point.


5.  Explain why water dissolves so many different substances.


6.  If a substance is known to enter a cell by diffusion, what

     effect would raising the temperature have on the cell?


From the Biology Workbook, complete pages 25 and 26. 

For most of you page 25 should be a review email me with questions to page 26.  Use your book for help.