Power_Point_Diffusion_Chapter_4

Power_Point_Diffusion_Chapter_4 - 0 Importance of...

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Slide 1 Importance of Biological Molecules Carbohydrates Energy storage=>short-term Lipids Energy storage=>long-term Lipid bilayer=>structure Proteins Many functions=>everything Nucleic Acids Information storage 0
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Slide 2 Concentration Gradient Means the number of molecules or ions in one region is different than the number in another region In the absence of other forces, a substance moves from a region where it is more concentrated to one where it is less concentrated: “down” gradient 0
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Slide 3 Diffusion The net movement of like molecules or ions down a concentration gradient Although molecules collide randomly, the net movement is away from the place with the most collisions (down gradient) oxygen, carbon dioxide, and other small, nonpolar molecules; some water molecules glucose and other large, polar, water-soluable molecules; ions (e.g., H+, Na+, K+, CA++, CI–); water molecules 0
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Slide 4 Stepped Art Figure 4.12a Page 65 0
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Slide 5 Stepped Art Figure 4.12b Page 65 0
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This note was uploaded on 03/12/2011 for the course BIO 1002 taught by Professor Bush during the Fall '08 term at University of Minnesota Morris.

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Power_Point_Diffusion_Chapter_4 - 0 Importance of...

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