BIOL4004 WEEK 3 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE

BIOL4004 WEEK 3 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ LATEST UPDATE Membrane-anchored protein Protein attached to membrane by a covalent lipid modification Unsaturated fatty acid A fatty acid with one or more carbon cis-double bonds Micelles A droplet of amphiphilic molecules (lipid or detergent) in water with polar, hydrophilic domains facing out and hydrophobic, non-polar domains packed together in the interior Alpha helix The structure formed by most membrane-spanning protein segments, made of ~20-30 hydrophobic amino acids Hydrophillic "Water loving," form hydrogen bonds and dissolve in water Transmembrane protein Proteins that extend through the lipid bilayer with mass on both faces, usually described by the number of times they cross or "pass" through the membrane Saturated fatty acid A fatty acid with only single bonds between its carbon atoms Liposomes Artificial spherical lipid bilayers that form spontaneously in solution, used to reconstitute membrane proteins Beta barrel The structure made by multiple transmembrane amino acid strands