Cell Membranes

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What proves that the cell membrane has two different responses to water?
Phospholipids are polar with a hydrophilic head and a hydrophobic tail
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What suggests the phospholipid bilayer structure?
When put in water, the phospholipids form bilayers with tails inside and heads outside. Furthermore the
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What proves the mosaic part of the cell membrane structure?
In electron microscope images of cell surfaces, proteins can be seen sticking out
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What proves that carbohydrates are only found on the outside of the membrane?
When lectins (which only react with carbohydrates) are added to a membrane they are found only on the outside
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What proves that proteins acts as channels for movement in the membrane?
Some water-soluble substances pass into and out of cells
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What proves that membranes are mainly made of lipids?
Ionic and polar molecules do not pass easily through membranes, but lipid-soluble substances do
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Card 2

Front

What suggests the phospholipid bilayer structure?

Back

When put in water, the phospholipids form bilayers with tails inside and heads outside. Furthermore the

Card 3

Front

What proves the mosaic part of the cell membrane structure?

Back

Preview of the front of card 3

Card 4

Front

What proves that carbohydrates are only found on the outside of the membrane?

Back

Preview of the front of card 4

Card 5

Front

What proves that proteins acts as channels for movement in the membrane?

Back

Preview of the front of card 5
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