Flashcards in  Class 1-Lipids-Agbas Deck (55)
Phosphoglyceride important for memory and cognition
Phosphoglyceride that it's major constituent of cell membrane and pulmonary surfactant
Phosphoglyceride composing 25% of all phospholipids and are found, particularly in humans, in nervous tissue such as the white matter of the brain
Phosphoglyceride important for signaling and other functional activities in eukaryotic cell
Phosphoglyceride that is important component of inner mitochondrial membrane
Amino group replaces a fatty acid component of phosphoglyceride...other fatty acid is unsaturated c-18
Sphingosine + FA
Ceramide + phosphorylcholine
Ceramide + monosaccharides
Ceramide + oligosaccharides
Ceramide oligosaccharides + NANA
Phospholipid w/ sphingosine as backbone w/ amide bonded FA and phosphorylcholine group
Where is sphingomyelin found? And what purpose does it serve?
Animal cell membranes in myelin sheath that surrounds some nerve cell axons
It provides electrical insulation for nerve transmission
-Derived from sphingosine
-Differ from sphingosine d/t unit linked to OH- grp of backbone
Glycolipids sugar moiety face intra/extracellular?
Extracellular. It is involved in cell to cell interactions
-The simplest glycolipid
-Contains single sugar residue
-Also called monoglycosylceramides
Function of Cerebrosides:
Important components in animal muscle and nerve cell membranes
A steroid, present in eukaryotes [not most porkaryotes]
Built from 4 fused saturated hydrocarbon rings
Classified as sterol b/c of OH- grp. And branched aliphatic side chain o 8-10 C atoms at C-17.
Which Carbon has the OH-grp in cholesterol?
Scientific name of cholesterol
Cyclopentanoperhydrophenanthrene ring system
Most abundant steroid in animals
Major component of eukaryotic plasma membrane
Cholesterol orientation in membrane?
Parallel to FA chains of the phospholipids, and the hydroxyl group interacts w/ the nearby phospholipid head group.
Cholesterol is absent in:
Some Intracellular membranes
Metabolic precursor of steroid hormones: