Membrane Structure And Lipids Flashcards
What are the 2 essential fatty acids
Linoleic and linolenic
Example of trans fatty acids are_______because they are produced from chemical hydrogenation of poly unsaturated oil to alter their physical properties
French fries
Glycerol and fatty acids are connected through which kinds of bonds
Ester bonds
Major membrane lipid types include
Glycerophospholipids
Sphingolipids
Cholesterol
Other lipids
The best example of amphipathic lipids are______because they contain both polar and non-polar parts
Membrane lipids
Glycerophospholipds structure includes
Glycerol backbone
2 fatty acids
Phosphate
Extra head group
Headgroups associated with glycerolphospholipids include
Choline
Ethanolamine
Serine
Inositol
The most common phospholipid is
PC (phospotidylcholine)
The following phospholipid acts as a signal in apoptosis
Phosphotidyl serine (PS)
Cardiolipin is a specialized lipid found in the
Mitochondrial inner membrane
The role of cardiolipin is to make the mitochondrial inner membrane more
Impermeable to ions
Plasmalogens differ than phospholipids in that they______________ as opposed to phospholipids having an ester linkage
Have ether linkages and a double bond
Degradation of phospholipids are done by
Phospholipases
Type A phospholipidlipases degrade phospholipids by
Cleaving fatty acids from the glycerol backbone
Type B phospholipases degrade phospholipids by
Cleaving fatty acids at more than 1 position
Type C phospholipases work by
Cleaving the head group between glycerol and the phosphate
Type D phospholipases work by
Cleaving the head group,after the phosphate
Sphingomyelin structure is based on________rather than glycerol
Serine
What differentiates Sphingolipids from glycerophospholipids
Sphingolipids hydrocarbon chains are connected via amide bonds instead of ester bonds
Glycosphingolipids are found on the _______membrane and serve a role in intercellular communication
Outer
Glycol iPods are found on the________membrane and provide structural support to the belayer
Outer
Detergents differ from other lipids in that they have
Higher head group size relative to,the tail
Detergents are known for forming________which does not have a bilayer
Micelle
Phosphotidylserine and phosphotidyl inositol are known for being located on the
Inner leaflet of the bilayer