How Various Mechanisms By Which Substances Cross The Cell Me

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Issue:

Miscellaneous

 

Written by:

Angelique I

 

Date added:

June 4, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

4 / 871

 

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8432 times

 

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Essay content:

From diffusion and osmosis, to active transport the traffic through the cell membrane is regulated. Diffusion is the movement of molecules form one area of higher concentration to an area of lower concentration. Concentration gradient causes the molecules to move from higher concentration to a lower concentration...
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The side of the membrane that has the higher concentration is said to have the concentration gradient. It drives diffusion because substances always move down their concentration gradient. The pressure gradient also plays a role in diffusion. Where this is a pressure gradient there is motion of molecules...
displayed 300 characters

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