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Explain what concentration gradient tequilibrium have to do with homeostasis of the cell ?
The cell membrane maintains homeostasis through the processes of diffusion, osmosis and filtration, which are passive forms of transport. [ Passive forms of transport move molecules such as water and substrates across the cell membrane with no energy on the cell's part. When there is too much of a certain molecule within the cell, the cell uses diffusion to transport some of those molecules into the environment. When there is not enough of a molecule within the cell, the cell uses diffusion to transport molecules from the environment into the cell. Diffusion takes no energy on the part of
the cell. It is the movement of solutes down the concentration gradient. It takes the excess molecules from the area in which they have the highest concentration and spread them out. Osmosis is the process of allowing water to permeate the cell membrane. It is the diffusion of water molecules. Through the processes of diffusion and osmosis, the cell membrane works to maintain homeostasis in the cell by transporting molecules to create equilibrium between the inside of the cell and its environment. Read more: How Does a Cell Maintain Homeostasis? | eHow.com ]
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Expert answered|selymi|Points 8912|
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Asked 9/27/2012 5:52:18 AM
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