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How Various Mechanisms By Which Substances Cross The Cell Me
Essay specific features
Written by:
Angelique I
Date added:
June 4, 2012
Level:
University
Grade:
A
No of pages / words:
4 / 871
Was viewed:
8432 times
Rating of current essay:
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...
displayed 300 characters
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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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