Cell membrane activity.pdf - CELL MEMBRANES ACTIVITY The cell membrane regulates what enters and leaves the cell and also aids in the protection and

Cell membrane activity.pdf - CELL MEMBRANES ACTIVITY The...

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CELL MEMBRANES ACTIVITY The cell membrane regulates what enters and leaves the cell and also aids in the protection and support of the cell. In a way, the cell membrane is similar to the walls that surround your house. As these walls help to protect your house from what is outside so the cell membrane seals off the cell from its outside environment. But if you lived in the house, you would still want to receive messages, fuel, and power from the outside environment. So utilities lines like telephone, gas, and electric would have to be able to pass through the walls of your house. You would also like to bring in food and take out trash. Thus doors would be needed. The needs of the cell are similar. It must communicate with other cells, take in food and water, and eliminate waste. All of these processes take place through the cell membrane. The cell membrane is composed of several kinds of molecules. The most important of these are lipids . A double layer — a bilayer — of lipid molecules forms the basic unit from which cell membranes are constructed. The lipids in the cell membrane are a special type of lipid called
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  • Spring '16
  • Doug Carmicheal

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