drydecay-
Phospholipids
Basis of cell membrane. Barrier, Transport of small non-polar molecules by diffusion
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Glycolipids
A carbohydrate chain attached to a lipid. Cell recognition
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Cholesterol
The cholesterol content of different membranes varies. Makes membrane more stable and rigid
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Intrinsic proteins
Channels and carriers needed for transport. Have hydrophobic and hydrophilic regions
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Extrinsic proteins
Charged (link with the heads of the bilayer). Can be receptor sites.
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Glycocalyx
Carbohydrate chain
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Extrinsic proteins (question)
On either surface of bi-layer, stabilise the membrane by holding the two layers together
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Intrinsic proteins (question)
Extend across both layers, allow passive movement of small, water-soluble molecules/ions through protein pores or channels. They can allow active transport of substances across membranes by forming channels
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Glycoproteins/glycolipids
Found in the outer layer of the membrane, the carbohydrate layer around the membrane has been glycosylated to form a glycocalyx. Some have roles as hormone receptors or cell-cell recognition
