BIOL 3410 Lecture Notes - Lecture 2: Cytoskeleton, Phosphatidylcholine, Computer Simulation
Document Summary
Figure 11-1 cell membranes act as selective barriers. All cell membranes prevent molecules on one side from freely mixing with those on the other, as schematically indicated by the colored dots. Figure 11-3 internal membranes form many different compartments in a eukaryotic cell. Some of the main membrane-enclosed organelles in a typical animal cell are shown here. Note that the nucleus and mitochondria are each enclosed by two membranes. Figure 10-2 the parts of a phospholipid molecule. This example is phosphatidylcholine, represented (a) schematically, (b) by a formula, (c) as a space-filling model, and (d) as a symbol. The kink resulting from the cis-double bond is exaggerated for emphasis. Figure 10-12 four major phospholipids in mammalian plasma membranes. Note that different head groups are represented by different colors. All the lipid molecules shown are derived from glycerol except for sphingomyelin, which is derived from serine.
