Lecture # 16 Lipids and Membranes Flashcards
1
Q
What are the functions of lipids?
A
Storage of energy, Insulation from environment, water repellent; membrane structure; cofactors for enzymes; signaling molecules; pigments; antioxidants
2
Q
Storage of energy
A
function of lipids; good packing and has lots of available energy
3
Q
Insulation from environment
A
Low thermal conductivity; High heat capacity; mechanical protection
4
Q
Water repellent
A
Hydrophobic nature keeps surface of the organism dry; prevents excessive wetting; prevents loss of water via evaporation
5
Q
membrane structure
A
main structure of cell membranes
6
Q
Cofactors for enzymes
A
Vitamin K: blood clot formation; Coenzyme Q: ATP synthesis in mitochondria
7
Q
What are the two classes of lipids?
A
Fatty acid containing lipids; Isoprenoid-containing lipids.
