Forms 2d o c p c tail 19 water figure 8 5 simulation

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: on’t need to know individual lipid structures – just classes (e.g. sterols vs. glycerophospholipids) + Lipid Bilayer ! Forms ! 2D O C P C tail 19 water Figure 8-5 Simulation of a lipid bilayer. In this model of a dipalmitoyl biological membranes phosphatidylcholine bilayer, C atoms are gray (except for the terminal carbon of each lipid tail, which is yellow), ester O atoms are red, phosphate groups are green, and choline head groups are magenta. Water molecules on each side of the bilayer are shown as blue spheres. [Courtesy Richard Pastor and Richard Venable, National Institutes of Health.] array of amphipathic molecules ? !  Nonpolar Indicate where the molecules shown in Box 8-B would be located. tails associate away from aqueous interface !  Head groups face outward to aqueous environment ! Forms spontaneously !  Hydrophobic effect Figure 8-4 Bilayer-forming abilities of some lipids. (a) Free fatty acids have a + Lipid Bilayer ! Bilayer is very fluid !  No defined geometry !  Dynamic assembly !  Self-seali...
View Full Document

This document was uploaded on 02/02/2014.

Ask a homework question - tutors are online