Fig. 11-5LehnFig. 11-15LehnFig. 10-1 LehnFig. 10-1 LehnCholesterolFig. 11-3 LehnWhy do single-passtransmembrane proteinsextend through the membraneas an alpha-helix, instead ofas an extended chain?Why do single-pass transmembraneproteins extend through the membrane asan alpha-helix, instead of as an extendedchain?A. To allow hydrophobic side chains tointeract with the lipid interior.B. To span the membrane with the leastpossible number of amino acids.C. To satisfy the need of backbonecarbonyl and amide nitrogens to H-bond.D. To form a channel through which smallions or water can diffuse.Fig. 11-20 LehnFig. 11-20 LehnFig. 11-3 LehnFig. 11-6LehnFig. 12-12LehnFig. 11-14LehnFig. 11-9 LehnFig. 11-10LehnFig. 11-13LehnFig. 11-7LehnFig. 11-11 LehnFig. 11-11 LehnFig. 11-9
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