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Definition
| when a polar head group is joined to the hydrophobic moiety by a phosphodiester linkage in glycerophospholipids & some sphingolipids |
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Definition
| sphingolipids which lack phosphate but have a simple sugar or complex oligosaccharide at their polar ends |
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Definition
| membrane lipids in which two fatty acids are attached in ester linkage to the first & second carbons of glycerol & a highly polar or charged group is attached through a phosphodiester linkage to the third carbon (AKA phosphoglycerides) |
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Definition
| can be found in some animal tissues & some unicellular organisms; one of the two acyl chains is attached to glycerol in ether (not ester) linkage |
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Definition
| ether lipids which have an ether-linked chain that contains a double bond between C-1 & C-2 (rather than being saturated as in the alkyl ether lipids) |
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| platelet-activating factor |
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Definition
| an ether lipid; acts as a potent molecular signal |
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Definition
| the type of membrane lipids that predominate in plant cells; one or two galactose residues are connected by a glycosidic linkage to C-3 of a 1,2-diacylglycerol |
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Definition
| the class of membrane lipids which have a polar head group & two nonpolar tails but contain no glycerol (unlike glycerophospholipids & galactolipids) |
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Definition
| the compound that results when a fatty acid is attached in amide linkage to the -NH2 on C-2; structurally similar to a diacylglycerol |
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Definition
| contain phosphocholine or phosphoethanolamine as their polar head group & are classified along with glycerophospholipids as phospholipids |
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Definition
| occur largely in the outer face of plasma membranes & have head groups with one or more sugars connected directly to the -OH at C-1 of the ceramide moiety; do not contain phosphate |
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Definition
| have a single sugar linked to ceramide; those with galactose are characteristically found in the plasma membranes of cells in neural tissue & those with glucose in the plasma membranes of cells in nonneural tissues |
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Term
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Definition
| glycosphingolipids with two or more sugars (usually D-glucose, D-galactose, or N-acetyl-D-galactosamine) |
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Definition
| cerebrosides & globosides; they have no charge at pH 7 |
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Definition
| the most complex sphingolipids that have oligosaccharides as their polar head groups & one or more residues of N-acetylneuraminic acid (a sialic acid) at the termini |
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Definition
| structural lipids present in the membranes of most eukaryotic cells |
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Definition
| the major sterol in animal tissues that is amphipathic (a polar head group & a non-polar hydrocarbon body about as long as a 16-carbon fatty acid in its extended form) |
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Term
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Definition
| polar derivatives of cholesterol that act as detergents in the intestine by emulsifying dietary fats to make them more readily accessible to digestive lipases |
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