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BIOS 242 Biological Membranes
- lipid bilayer
- freeze fracture electron microscopy
- Phosphoglycerides
- unsaturated fatty acid
- sphingolipid
- ceramide
- cerebroside
- ganglioside
- integral membrane protein 1 / 2
–Answer double-layered sheet that forms the core of nearly all cell mem- branes
–Answer provides a way of visualizing the interior of cell membranes
–Answer Phospholipids with a glycerol backbone
–Answer A fatty acid possessing one or more double bonds between the carbons in the hydrocarbon tail.Such bonding reduces the number of hydrogen atoms attached to the carbon skeleton.
–Answer A lipid containing a sphingosine or sphingoid backbone bound to fatty acid tails; includes ceramide, sphingomyelins, glycosphingolipids, and ganglio- sides
–Answer sphingosine + fatty acid
–Answer A sphingolipid containing a sugar as a polar head group
–Answer A sphingolipid with a polar head group containing an oligosaccha- ride carbohydrate
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–Answer A protein embedded in the lipid bilayer of a cell. These are typicallly cell surface receptors, channels, or pumps.
- peripheral membrane protein
- lipid anchored proteins
- GPI (glycosylphosphatidyl inositol) linked protein
- Saturated fatty acid
- Gorter and Grendel
- Singer and Nicolson
- fluid mosaic model
- Phospholipids
- / 2
–Answer A protein that is associated with the plasma membrane of a cell, but that is not embedded in the lipid bilayer.
–Answer a protein covalently attached to a phospholipid or fatty acid embedded in the bilayer
–Answer A protein that is anchored in a membrane via a covalently linked glycosylphosphatidylinositol (GPI) group
–Answer A fatty acid in which all carbons in the hydrocarbon tail are connected by single bonds, thus maximizing the number of hydrogen atoms that can attach to the carbon skeleton.
–Answer conducted experiments that suggested the lipid bilayer model
–Answer Proposed that membrane proteins are dispersed and individually inserted into the phospholipid bilayer
–Answer The currently accepted model of cell membrane structure, which envisions the membrane as a mosaic of individually inserted protein mole- cules drifting laterally in a fluid bilayer of phospholipids.