phospholipids

1.1 Membrane Structure and Composition

phospholipids create a spherical three dimensional lipid bilayer shell

phospholipids orient towards each other creating a hydrophobic environment

Lipid bilayers are fluid, and individual phospholipids diffuse

proteins, cholesterol, and other types of molecules besides phospholipids).

The phospholipids can move to the opposite side of a bacterial cell membrane

phospholipids. Saturated hydrocarbons are straight-chains ("saturated" with

"saturated" with hydrogens). A group of phospholipids with saturated

bonds that hold the phospholipids to each other. Phospholipids with

the tight packing by preventing the phospholipids from getting close

Biological Macromolecules

lipids (including phospholipids, fatty acids, and triacylglycerols)

Lipids

The lipids we'll be studying are phospholipids, the primary components of cellular membranes. Phospholipids are amphipathic; that is, they are both hydrophilic and hydrophobic. The "head" of a lipid moleule is negatively charged phosphate group and the two

three structures that phospholipids can form because of their ampiphatic