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With all the activities inside and outside the cell, how does the cell membrane hold it all together? This program closely examines the structure and function of cell membranes, including compartmentalization, intercellular interaction, regulation of the movement of materials, and as a location for biochemical activities. Using a combination of narration, film footage, and engaging graphics, the program covers the various ways in which materials can cross the cell membrane, such as diffusion, active and passive transport, osmosis, and endo- and exocytosis. The effects of osmosis—plasmolysis and turgor in plants—are also presented. (33 minutes)



 
                    

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Copyright date: ©2002



Part of the Series : Cells-The Inside and Out
     


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Voyage Inside the Cell
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Inside Cells: Cells and Their Organelles
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Conservation and Energy Alternatives: Powering the Future
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Bottling the Sun: The Quest for Nuclear Fusion
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As fossil fuels near depletion, nuclear fusion promises unlimited power supplies. This program looks at recent developments in the quest to turn the mechanism of the sun into a viable energy source. The program chronicles the efforts of Alan Sykes an...(more details)
 


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