1. Act as building blocks of the biological cell membranes in virtually all organisms
2. Participate in the transduction of biological signals across the membrane.
3. Act as efficient store of energy as with triglycerides.
4. Play an important role in the transportation of fat between gut and liver in mammalian digestion.
5. An important source of acetylcholine which is the most commonly occurring neurotransmitter substance occurring in mammals.
One polar Phosphate head and two nonpolar fatty acid tails
contain phoshate
Phosphate molecules.
phosphate
in the lipid bylayer between the phospholipid molecules
Liposomes
They have both hydrophilic and hydrophobic regions
The head and tail is a phospholipid molecule
Phosphate molecules.
Phosphate molecules.
Phosphate molecules.
Protein Molecules
Cell membrane.
amphipathic molecules
Phosphate molecules.
phosphate
Phosphate molecules.
they form a bilayor
Side-by-side