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Figure 5.1 Membrane Molecular Structure. Carbohydrates are attached to the outer surface of proteins (forming glycoproteins) or lipids (forming glycolipids). In animal cells, some membrane proteins associate with filaments in the extracellular matrix . Outside of cell. Extracellular matrix.
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Figure 5.1 Membrane Molecular Structure Carbohydrates are attached to the outer surface of proteins (forming glycoproteins) or lipids (forming glycolipids). In animal cells, some membrane proteins associate with filaments in the extracellular matrix. Outside of cell Extracellular matrix Phospholipid Cholesterol molecules interspersed among phospholipid tails in the bilayer influence the fluidity of fatty acids in the membrane. Cytoskeleton Some integral proteins cross the entire phospholipid bilayer; others penetrate only partially into the bilayer. Peripheral membrane proteins do not penetrate the bilayer at all. Some membrane proteins interact with the interior cytoskeleton. Inside of cell