Membranes: slides Flashcards
Why does cholesterol prevent hydrocarbons from crystallizing structurally?
It has a bunch of cyclic rings on it that block lipids from interacting
What can lipids not do in turns of movement?
flip-flop
What are some examples of types of lipids?
Phosphatidylethanolamine (charged amine at the end, phosphate in the middle, ester below)
sphingolipids
sphingosine
phosphatidylserine
What’s important about lipid raft composition in terms of prior knowledge?
lots of cholesterol. Gets in, spreads apart membrane to let proteins in
What are glycolipids a subcategory of?
lipids. They’re on eukaryotic membrane surface
Analogy for glycolipids?
They’re a sticky thing coming out of a ball
Where on the membrane do lipid-anchored proteins hang out?
Whatever lipid molecule they’re bound to
What do peripheral proteins do?
Bind temporarily
