Whats the lip?
has both hydrophilic and hydrophobic parts
What is amphipathic?
the connection of monomers
What makes a true polymer?
main constituent of body fat, non-polar molecules, stored in mammalian adipose tissue and coalesce to form large globules in cytoplasm
What are triacylglycerols
fat cells specialized for TAG synthesis, storage, and mobilization
What are adipocytes?
composed of C-C single bonds
What is a saturated FA?
main constituent of all biological membranes and dual chemical nature (polar negative hydrophilic head and non polar uncharged hydrophobic tail)
What is a phospholipid?
the tetracyclic platform that steroids are built on
What is a steroid nucleus?
composed of one double or triple bond
What is a monounsaturated FA?
Lipid with carb covalently attached, sphingosine platform with o-glycosidic bond to monosaccharide, involved in cell-to-cell interactions as carb is on extracellular surface
What are glycolipids?
protein on plasma membrane surface with covalently attached lipids within membrane; necessary for protein to associate with hydrophobic environment
What is a lipid-anchored protein?
composed of >2 double or triple bonds
What is a polyunsaturated FA?
polycyclic hydrocarbons involved in signaling, digestion of dietary lipids, and membranes, not a monomer for lipids, tetracyclic platform, cholesterol is most common steroid, and important in maintaining proper membrane fluidity
What are steroids?
-stable lipoprotein particle consisting primarily of TAGS, also contains phospholipids, cholesterols, and proteins
-released into the lymph system then the blood for long distance transport; transports TAGS, fat-soluble vitamins, and cholesterol while bypassing the hepatic portal system (which directs blood from GI tract to liver) so liver does not have to dietary lipids
What is a chylomicron?
short chain lengths make a more fluid, loose lipid bilayer. Longer chains make it stiffer and more viscous. Lipid bilayer is stabilized by non covalent interactions so if we impact those bonds' abilities to form, then are you are going to impact the ability to form those stiff, strong membranes.
What is the impact of chain length and saturation on membrane fluidity?