CHAPTER 4 The Organization of Cells. The Cell: The Basic Unit of Life. All cells come from preexisting cells and have certain processes, molecules, and structures in common. Surrounded and separated from external environment by a lipid bilayer membrane. The Cell: The Basic Unit of Life.
Pili are projections by which prokaryotic cells attach to one another or to environmental surfaces.Prokaryotic Cells
Biological membranes consist of lipids, proteins, and carbohydrates.
fluid mosaic model describes a phospholipid bilayer in which membrane proteins move laterally within the membrane.Membrane Composition and Structure
Figure 5.2 carbohydrates.Lipid Bilayer Structure
Figure 5.6 – Part 1
Adherins junction similar to desmosome
Figure 5.6 – Part 2