CTS/2/cell membrane & transport
Cards (316)
- What provides the basic structure for all cell membranes?
- Why is the lipid bilayer easily seen by electron microscopy?
- What property allows lipid molecules to assemble into bilayers spontaneously?
- What are the general properties of lipid bilayers?
- What characteristic do all lipid molecules in cell membranes share?
- What are the two ends of amphiphilic lipid molecules?
- What are the most abundant membrane lipids?
- What do phospholipids consist of?
- What influences the fluidity of the membrane in phospholipids?
- What is the main type of phospholipid in most animal cell membranes?
- What is the structure of glycerophospholipids?
- What are the most abundant glycerophospholipids in mammalian cell membranes?
- What distinguishes sphingolipids from glycerophospholipids?
- What is the most common sphingolipid?
- What do glycolipids resemble?
- What is the primary sterol found in animal cells?
- How do cholesterol molecules orient themselves in the bilayer?
- What drives phospholipids to form bilayers in aqueous environments?
- What happens to hydrophilic molecules in water?
- Why are hydrophobic molecules insoluble in water?
- What is the entropic free-energy cost associated with hydrophobic molecules in water?
- How do phospholipid molecules behave in an aqueous environment?
- What are the two optimal packing arrangements for phospholipids?
- What property allows a bilayer to self-seal?
- Why is fluidity important for cell membranes?
- What did researchers discover about lipid molecules in the bilayer around 1970?
- What is the process called when lipid molecules migrate from one monolayer to another?
- How long does it take for a lipid molecule to diffuse the length of a large bacterial cell?
- What do computer simulations show about lipid molecules in synthetic bilayers?
- What do mobility studies on biological membranes reveal?
- What problem arises for the growth of biological membranes?
- How do phospholipid translocators solve the problem of membrane growth?
- Why do liposomes not fuse spontaneously in water?
- What prevents uncontrolled fusion of internal membranes in eukaryotic cells?
- What regulates the fluidity of cell membranes?
- What is a phase transition in lipid bilayers?
- What effect do shorter hydrocarbon chains have on membrane fluidity?
- How do cis-double bonds affect membrane fluidity?
- How do organisms maintain constant membrane fluidity with temperature changes?
- What role do sterols play in lipid bilayers?